Arduino gprs shield pachube jobs

I have three digital images of animal mascots - a raven, a snake, and a griffon. I need these to be placed into crest type shields, with a banner on top featuring a logo. These designs are intended for t-shirts and also need to be convertible for stitched badges of various sizes. Key Requirements: - Incorporate the existing animal mascot images into crest shields - Add a banner on top of each shield with a specific logo - Design the imagery in a fantasy and elaborate style Ideal Freelancer: - Graphic designer with experience in heraldry or related design - Proficient in working with animal mascot imagery and fantasy themes - Skilled in creating designs for t-shirts and badges - Able to provide multiple variations for each design - Experience with logo integration into designs The...

I have been developing a arduino type hmi using a nextion touch screen, arduino mega, arduino nano esp32 for wireless control and a waveshare esp32 touchscreen for the remote. I have written all the code but am needing help figuring out why the commands are not working as they should.

Job description: Establishing an e-commerce website and shop in Shopify according our specification See wkc-sol...resolution of the file check amount of colors of file Export of engraving file from the shop as graphic file in bmp / jpg format Backend settings: Enable engravings in the product Backend settings: background picture per product Backend settings: define max colors of file Backend settings: define min / max kb per Upload See for example Request only products Some products are on request only (not for sale in the shop), with contact button to email to the sales team. Delivery time per Product and also complete categories This project should start in may 2024 – and should finished within 90 days

...in need of a talented designer who can create a custom case for a digital stop watch that will primarily be used for sports timing. Key Requirements: - The case should have an ergonomic grip, similar to that of a Seiko S141. This is crucial for comfortable handling during sports activities. - The design must be compatible with micro boards, a battery, and an OLED display. I would like to use Arduino pro micro and a small 1.5" display Ideal Skills and Experience: - Proficiency in product design and CAD software to develop the case model. - Prior experience in designing sports equipment is highly preferred, to ensure the final product meets the specific requirements for this kind of usage. - Knowledge of materials to be used in manufacturing for both durability and comfort. ...

I am in need of a skilled Arduino programmer, with experience specifically in robotics programming for educational purposes. The project has an intermediate level of complexity, so a solid understanding and the ability to problem-solve and code efficiently will be crucial. Ideal Skills: - Arduino programming - Robotics programming - Educators and student-user centered design Given the nature of the end-users, it would be highly beneficial if the freelancer also has experience in creating user-friendly interfaces and can foresee potential challenges that educators or students may face. Your technical expertise will be expected to translate into an accessible and engaging project that fits the educational context.

I'm seeking an experienced Arduino developer with a strong background in SNMP integration to assist with my IoT project. While I haven't detailed the specific tasks for the Arduino sketch, I need someone who is able to create a comprehensive program that meets the needs of my project.

I am seeking talented freelancers to develop an Arduino UNO bluetooth car for my personal hobby project. It requires expertise in Arduino programming and physical assembly of the car kit. The specific features I want are: - Directional movement: The car should smoothly move forward, backward, left, and right via remote bluetooth controls. - Speed control: The speed of the car should be adjustable. The ideal size I'm seeking for the car is medium, neither too compact nor too large. Experience with remote control vehicles and Arduino, as well as understanding of bluetooth technology, will be a plus for this project. I am looking forward to your innovative design submissions and technical solutions.

I'm in need of an experienced programmer who is well-versed in Arduino code. This project demands a particular set of skills: * Proficient in Arduino coding with a focus on device communication. * Comprehensive understanding of stepper motors functionality and their interaction with Arduino. * Ability to program Arduino to communicate and effectively control two stepper motors. The delivered coding should achieve seamless communication between Arduino and the stepper motors. Please take note of the quantity of stepper motors to control - two in this instance. Qualified bidders will be well-experienced in Arduino and stepper motors, able to discuss technical requirements with clarity, and pride themselves in delivering accurate, reliable cod...

...you were to pass the second logic test, and $50 (Fifty Dollars) if you were to pass the third logic test. ✻ OBTAINING SUPPLIES ✻ I will send you approximately $50 (Fifty Dollars) so that you can purchase ESP32 development boards, breadboards, components (such as resistors, transistors, and capacitors), wires, etc. on a site such as AliExpress, Mercado Libre, etc. The ESP32 is similar to an Arduino. I realize it may take you up to 30 (thirty) days to obtain these items. That's fine with me. However, I will * not * help you deal with corrupt local customs officials who require bribes to release goods. Any “horror stories” you might have heard or read about corrupt local customs officials in your country requiring bribes to release goods probably were for item...

I'm looking for a skilled freelancer who can help me develop a custom GPS tracker using the Ai-Thinker A9G GPS/GPRS module. Key features: - Real-time tracking: The ability to track the device in real-time is crucial. - Speed tracking: I need the device to be able to measure and communicate its speed accurately. Compatibility: - The custom GPS tracker should be designed to work seamlessly with the Ai-Thinker A9G GPS/GPRS module. Requirements Details:- 1. Assign unique ID to module. 2. Switch button to enbale/disable tracking. 3. Fetch GPS coordinates 3.1 Store last 50 coordinates in memory. 3.2 Have customizable recording frequency (i.e. Rate at which module should capture GPS coordinates) 4. Push GPS coorinates to (firestore DB (Important)) 4.1 Two Push modes ...

I need an application developed for my final year project. The app's main functionalities should include: - Providing detailed information on various cow breeds - Locating nearby cow shield or foundations - Tracking the location of these foundations - Listing available products from these foundations, such as milk Please note that this is a project for a final year student. Therefore, previous work, experience and detailed project proposals are preferred, but not mandatory. The app needs to be completed within a month. Ideal skills would include app development, GPS technology, database management, and a basic understanding of animal breeds.

Hi Ahmed, I hope you're doing well! We have another project I'm hoping you will be interest in. Similar to the others the artwork needs so adjustments. All black outlines with the background being transparent and hi-resolution. Overall size around 5x5. All the blue and yellow in the shield will be white/transparent background. Except to the fleur de lys in the center they can be black. Please let me know if you have any questions and if you are interested along with your price. - Fida

IOT is being used a lot these days to provide functions that were being done before manually. We are also embarking on the same journey and looking for a potential person who can help us with our proposed system. Thank you

...will need to integrate microcontrollers, an ePaper display, and power management components - Experience in designing PCBs for prototyping required - Currently the design uses a TTL connection for uploading firmware Your tasks will include: - Understanding the project requirements and goals - Make necessary updates to design files - Assist software (firmware) team in loading/executing firmware (Arduino IDE) - Designing a multi-layer PCB layout that meets the specified criteria - Ensuring that the board is optimized for the intended use as a prototype - Providing necessary documentation for manufacturing and assembly Ideal Skills and Experience: - Proficient in PCB design software (such as Eagle, Altium, KiCad) - Experience with multi-layer board design - Familiarity with micro...

As a developer with experience in MKS DLC32 (Arduino code), I am looking for a solution to gain precise control over a 5-volt water pumps and a servo connected to an MKS dlc32 board. the code should be written in Arduino Ide as custom script. Key Features: - Controlling stepper motors (already have that) - Regulating a 5-volt water pump - Manipulating a servo The success of this project relies heavily on achieving precise control over the afore mentioned devices. Given the technical requirements for this job, it's beneficial if you have a relevant background and an understanding of how to efficiently work with MKS DlC32 board. Ideal Skills and Experience: - Extensive experience with Arduino IDE - Specific knowledge of MKS dlc32 boards - Proven ability in d...

I require an intricate hardware developer with technical mastery to custom design an isolated encoder signal splitter board that's compatible with Arduino micro-controller, specifically ATmega2560. Key Features: 1. Voltage Isolation: The board must feature voltage isolation to ensure safe transmissions. 2. Compatibility: It must be fully interoperable with Arduino libraries which serves as a platform for expansion and experimentation. 3. Signal Amplification: the board should not draw more current than pull-up resistors for incremental encoders connection. If required, a signal amplification needs to be implemented. Standard signal voltage is 5V DC. Main Purpose: 1. Noise Reduction: It should provide clear communication by suppressing ambient noise in the signal. The...

As the project owner, I require an Arduino Uno code, specifically designed to interact with a fingerprint reader for input, LCD and 14 relays for output. Key Requirements: - The code should identify 14 people's fingerprints (let's say 2 different fingerprints for each person), write the name of that person on the LCD and activate the corresponding relay for each person. - The associated relays will control a particular robotic device. - When an unrecognized fingerprint is scanned, the system should write on LCD "unrecognized fingerprint" without triggering any relay. Ideal Skills and Experience: - Proficiency with Arduino programming - Experience working with fingerprint readers - Knowledge of relay and robotic systems . Familiarity with sensor integr...

I have a project that requires setting up an 8 Channel Arduino Relay Module and programming it to operate using a basic 4 button hand controller. My Arduino board of choice is the Arduino Uno. For the hand controller, I need different functionalities: - Each button should be able to toggle a specific relay on and off. - Certain buttons should cycle through a sequence of relays. - Some buttons should have the ability to control a combination of relays. Importantly, only 1 relay should be controlled at a time. The ideal freelancer for this project should have a deep understanding of Arduino programming, particularly with Arduino Uno, and experience with relay modules and controller setup. Familiarity with creating flexible, customizable controls is a p...

Here is a brief description of my project. (Please note: I will not reply back to auto response messages. Also please post the actual price not a price just to get my attention.) My project consists of two items. Part A: Part A has a single function that function is to transmit a signal. The part needs to be housed in a waterproof container and be powered by a rechargeable battery preferably through USB. This part will actually go on a dogs collar. The device can either transmit vi. RF, USB or any other short range signal. Part B: Part B its job is to have two functions. The first function is to receive a signal from Part A, the second job of Part B is to transmit a specified RF signal to Part C when Part A is within 2 to 3 feet of Part B. Part B, needs to also be housed in a waterproof...

...individual to create an innovative IoT solution utilizing an Arduino board and camera module, along with UPC scanning software. This project involves developing a UPC scanner that can accurately read the UPC on a product. Upon scanning, the information of the scanned product such as date, time, UPC, product name and product retail should be transmitted and populated into a web application. Key Tasks: - Develop and integrate the UPC scanning software to be used with the camera attachment for the Arduino board. - Establish a Wi-Fi connection for the Arduino IoT UPC scanner to communicate with the web app. - Ensure accurate transmission and population of the scanned product information in the web application. Ideal Skills: - Proficient in Arduino programming a...

I need an expert in Arduino programming to develop a code that connects to an OV7670 camera, recognizes specific patterns (like a person's head) and triggers an LED. Key Requirements: - Use an Arduino Uno or Nano to interface with an OV7670 camera and LED. - The code should have a pattern recognition feature - specifically, recognizing a person's head. - When the pattern is detected, the LED should light up to indicate an event has occurred. Additional Details: - The code should be able to differentiate a specific pattern (a person's head) from other objects or patterns that may be in the camera's view. - This is an intermediate level project, hence the recognition should be accurate enough to detect the specific object. Ideal Skills: - Proficiency in ...

Advise as to whether vs code or arduino ide would be more suitable Complete a project containing the various pages of code, organised and zipped, ready for unpacking and modification/use. //* comment heavily, briefly explaining the features as you go. Use caps lock for anything that requires editor attention or input. Intended for hardware devices: • Xiao Esp32-S3 Sense (I call 'sense') • a small bulb such as this: • ESP32-4848S040C_I_Y_3 (I call '484') • a small speaker, such as this: Each sense should be assigned the placeholder for 2 micro servos. So if a new sense is selected via the 484 at any time, it is assigned a light as well as 2 servos. No functionality is currently required of the servos but the coding should

I need help to build a library for the tmp1827 (Texas Instruments) onewire sensor in arduino. It should run also with an ESP32. The Library should have at least following methods: Read temperature Read unique ID Write EPROM Read EPROM

I am in need of a professional who can efficiently handle an RS485 device that requires reconfiguration. The scope of...converter - Installation and configuration of the converter with the RS485 device - Ensuring smooth and effective communication between the RS485 device and the TCP/IP Ethernet serial server Preferred skills and experience: - Proficient in working with RS485 devices - Strong knowledge of TCP/IP Ethernet serial servers and hardware programming - Prior experience with Modbus TCP - Familiarity with Arduino, Raspberry Pi, and ESP8266 Your responsibility will strictly be focused on setup and reconfiguration; no modifications on the RS485 device will be necessary. Please only bid if you are confident with this job, have relevant experience, and can deliver the projec...

...background in measurement systems particularly using load cells and load cell amps and basic platform development. The objective is to develop a project which measures loads within a range of 10-20kg , with data input to an Arduino microcontroller. The ability to configure an edge device to continuously stream data to a simple BI dashboard on a desktop is also required. The successful freelancer should have the following skills and experience: - An excellent understanding of load cells and how to operate and interpret readings from them. - Extensive experience using Arduino microcontrollers and able to proficiently program and troubleshoot them. - Knowledge on how to integrate an edge device with this setup, and the skills needed to stream data to a BI dashboard. -Should...

Hi there, I'm looking for an expert in Arduino programming who can develop custom code. I have all the hardware including an Arduino Uno R4, a NEMA 17 stepper motor, an A4988 stepper motor controller, an RC522 RFID antenna, a 1602IIC LCD display, and push buttons. All of these components need to be connected to the same arduino. I need this system function as follows: - When the push button is pressed, the stepper motor will be moved X amount of steps in one direction after a delay of 1 second. At this time, the LCD display should display "Scan ID to Unlock". - When a registered and accepted RFID tag is scanned, the LCD will display "Tool Unlocked". When this happens, the stepper motor should be moved X amount of steps BACK to where it cam...

knights get out of shield

I'm in need of an ESP32 BLE application that can be controlled remotely. The platform for the user interaction will be Arduino ESP32. Key Requirements: - Client/Server Architecture: This application should have a client/server structure. - Bidirectional Communication: The application should support both reading and writing data. - Multiple Device Control: The application should be capable of controlling between 1-5 different devices. The ideal freelancer for this project should have: - Strong experience with ESP32 and Bluetooth Low Energy. - Proficiency in developing applications for Arduino ESP32. - Proven track record of building client/server applications. - Excellent communication skills to understand the specific requirements of this project.

I'm in need of a skilled Arduino coder to create a custom code for me. My project primarily involves generating variable frequency range FSK sine wave output. Key Requirements: - Develop code specifically for Arduino R4 board + SD card module - Generate sine waves of different frequencies - Different frequencies - 10,000 different frequencies (integers) - eg: txt file (100,200,300,400,500.................n integers) Frequencies list are stored in a SD card CSV or txt format Arduino new R4 boards has built-in DAC for sine wave generation with ready made library as follows: Code for wave generation --->>> analogWave wave(DAC); int freq = 10; // in hertz, change accordingly void setup()...

As the owner of a WordPress site, I am off to improve several key areas. I'm emp...improve several key areas. I'm emphasizing: • Site Speed: My website's page loading speed requires optimization to grant a smoother, faster browsing experience to my visitors. • Mobile Responsiveness: While the specifics weren't elaborated, the need is for a responsive design that ensures optimum performance on all devices. • Site Security: The addition of firewall protection is mandatory to shield my site from unwanted breaches and potential cyber threats. The ideal bidder will be versed in WordPress performance optimization, mobile responsiveness, and cybersecurity. An expertise in implementing firewall protection is highly sought after. Let's amp up my Wo...

I currently have Wowza installed and I need expert assistance to shield my HLS streams against unauthorized use on other platforms. Key Tasks: - Configure HLS stream protection on my existing Wowza setup Required Skills and Experience: - Proven expertise in working with Wowza - Prior experience in protecting HLS streams Application Requirements: Please share prior work that shows your ability to successfully handle tasks related to the current project. Emphasize relevance and results achieved. My final output must be HTTPS and protected.

I'm looking for a skilled an...who can assist me in building an intermediate-level electronic prototype. The main objective of this project is to create a functional prototype, which will involve a moderate level of programming. No custom PCB design is necessary for this project. Ideal skills and experience for this job include: - Proficiency in electronic engineering with a focus on prototyping - Strong understanding of Arduino programming - Experience in building electronic prototypes with multiple components - Ability to work on intermediate level projects that require moderate programming - Good problem-solving skills and attention to detail If you think you have the right skills and experience for this project, please submit your proposal with relevant examples of your...

I'm seeking an expert in LabView, Arduino programming, and their integration. The aim of the project is to create a system for industrial automation and prototyping that includes: - Real-time data monitoring - Designing a user-friendly interface - Automation and integration of microcontrollers You should ideally hold substantial experience in LabView development and Arduino programming. Your experience should encompass integrating these platforms and implementing the features mentioned above. Knowledge in integrating various sensors into this type of system and achieving real-time data monitoring will be crucial to this project. Any previous work with industrial automation and prototyping will certainly be beneficial.

...comprehensive learning plan intended for various age groups from Kindergarten to college. This curriculum should encompass three main areas: 1. Coding: Should cover various programming languages including Python, Java and foundational learning platforms like Scratch, as well as MIT App Inventor for app development. 2. Robotics: The curriculum should also touch on different robotics platforms - from Arduino, LEGO, VEX, Sphero to Raspberry Pi. 3. Media Arts: In addition, I want to integrate media arts, where students can learn graphic design, animation, videography, and web design and development. Ideal candidates should have extensive experience in pedagogy and skill development in these areas, and be able to create an engaging, age-appropriate curriculum for students acros...

I have an existing Arduino code which requires modification for converting my Bluetooth to BLE compatible for iOS applications. Your responsibility will be to: - Modify the existing Arduino code to make it BLE compatible - AS optional Create an iOS application with a control interface feature. The application should allow users to control and manage a customized smart lock model. Ideal Skills: - Expertise in Arduino code modification - Proven experience in developing BLE compatible software - Proficient in iOS application development, particularly in creating control interfaces - Familiarity with smart lock functionalities would be a bonus. Your services will be reviewed for potential system upgrading needs, hence, I'm interested in individuals who have a pr...

...frustration. Target Audience: The book is aimed at Cybersecurity & IT professionals, business leaders, and students studying in technical & business fields]. The cover should appeal to this audience without overly childish visuals. Concept: Frustrated Hacker vs. Robust Security I will provide the image/s to be used. Foiled Attacks: Depict common threats being repelled: A phishing email bouncing off a shield marked "MFA" A malicious bug labeled "Malware" squashed by a "Software Update" patch Other clever visualizations of vulnerabilities failing to be exploited... Background: Simple, perhaps a subtle tech-inspired pattern to avoid distraction Title/Tagline: Space for a bold title like "Hackers Hate This!" and a short tagline sum...

I am looking for an Arduino project that will have a range of features and capabilities to help me create Internet of Things (IoT) solutions. Specifically, I am looking for functionalities that include temperature and humidity monitoring, water level indicator, dc5v humidifier portable bluetooth speaker,soil moisture monitoring, multicolour led and remote control capabilities. In addition, I also need features such as a water level indicator, soil moisture indicator, fogger, and bluetooth operated. I need the remote control capabilities to have a range of 10-50 meters. Finally, I need the project to be able to control small sensors.

I am looking for a skilled Arduino developer to code my Arduino Mega for sensor monitoring. The project requires the code to interact with specific hardware and components. The sensor monitoring required is at an intermediate level, involving multiple sensors and data processing. My project consist of a collision sensor, Bluetooth module, ultrasonic sensor, an OLED screen and a buzzer, all connected to the Arduino mega board. The data from these sensors will be sent to the application through the Bluetooth module and the data like date, time, navigation directions and the call notification from the app will be sent to the Arduino for displaying the same on the OLED screen. Whenever there is a collision of the helmet occurs a collision signal will be sent to the ...

I need a C++ programmer who can answer questions about my project Key Project Requirements: - Have prior experience in C++ programming for Arduino UNO - Familiarity with PixyMon camera - Proficiency in implementing line following functionality The project is urgent, and I need someone who can deliver a high-quality code within a short time frame. If you meet the above requirements, and you're confident in your ability to deliver quickly, please reach out.

I am seeking an Arduino programmer to help with a specific project. Key Responsibilities: - Writing code for controlling reed switches - Displaying data from the reed switches on an LCD Ideal Candidate: - Proficient in Arduino programming and sensor control - Experience in working with reed switches - Capable of interfacing with LCD displays This project requires a good understanding of sensor control, as well as being able to implement the desired display output. Understanding of the specific sensor, reed switches, is a plus. Please only bid if you have experience in these areas.

Here is a brief description of my project. My project consists of two items. Part A: Part A has a single function that function is to transmit a signal. The part needs to be housed in a waterproof container and be powered by a rechargeable battery preferably through USB. This part will actually go on a dogs collar. The device can either transmit vi. RF, USB or any other short range signal. Part B: Part B its job is to have two functions. The first function is to receive a signal from Part A, the second job of Part B is to transmit a specified RF signal to Part C when Part A is within 2 to 3 feet of Part B. Part B, needs to also be housed in a waterproof container and be able to be charged via USB. Part C: Part C, is a separate module that is already created its job is when it receives a...

I'm looking for someone skilled in Arduino and SNMP integration who can create a sketch for my IOT project. Key requirements: - Utilize temperature and humidity sensors - Report sensor readings and their status via SNMP, specifically tracking temperature, humidity, and particulate matter (PM 1.0, 2.5, etc) -Utilize the eInk device for device status Ideal candidates should have good understanding and hands-on experience with environmental sensors, Arduino programming, SNMP protocols and Zabbix software. Hardware is the M5 AirQ device () I have attached the original config file that presents all sensor data via a web interface and should provide all the details required.

...smart power monitor system I've developed using Arduino. This report will be accompanied by a PowerPoint presentation. The report should contain: - **Technical Details:** I have a basic structure in place, but I'm seeking a professional who can fill in any missing technical information. - **Benefits and Applications:** The report should showcase the potential benefits of this system and highlight possible real-world applications. - **Data Analysis and Insights:** It's important to have a detailed data analysis section, with insights drawn from the information collected by the system. I also need the report to include missing details such as: - **Hardware Components Used:** I'd like the freelancer to list all the hardware components like the Arduino U...

I am looking for a skilled Arduino developer to code my Arduino Mega for sensor monitoring. The project requires the code to interact with specific hardware and components. The sensor monitoring required is at an intermediate level, involving multiple sensors and data processing. My project consist of a collision sensor, Bluetooth module, ultrasonic sensor, an OLED screen and a buzzer, all connected to the Arduino mega board. The data from these sensors will be sent to the application through the Bluetooth module and the data like date, time, navigation directions and the call notification from the app will be sent to the Arduino for displaying the same on the OLED screen. Whenever there is a collision of the helmet occurs a collision signal will be sent to the ...

I'm looking for a skilled Arduino programmer who can help me set up an interface between my Arduino and Lora SX1278. This project involves two primary components: setting up the Lora SX1278 interface and controlling a relay on the receiver side. Key Requirements: - Lora SX1278 Interface Configuration: I need to establish a reliable, long-distance communication channel between two Arduinos. The Lora SX1278 module should be set up for low power consumption and secure data transmission. I would like the system to be able to send and receive data effectively. - Relay Control: On the receiver side, the Arduino should be able to turn on and off a relay. This should be accomplished using the Lora SX1278 module. The relay control can be either manual (via a button), remo...

I require an expert in Arduino Esp32 to develop the following functionalities: - Implement wireless communication capabilities on the Arduino system. - Integrate both analog sensor input and digital output control on the same Esp32. - Subsequently, the system must be designed to read and store 4 diverse coin denominations. Storage and Processing of Data: - Experience working with Arduino internal non-volatile memory is crucial, as this is the preferred method of storing denomination data. Key Skills: - Arduino ESP32 proficiency - Understanding of wireless communication - Expertise in internal non-volatile memory systems - Ability in sensor input and digital output control - Experience in handling multiple currency denominations This is quite a specialized p...

...up data communication between Arduino devices using Lora technology. Key Project Details: - The project involves simple packet sending between devices, specifically focusing on transmitting GPS coordinates. - You need to be proficient in Lora programming for this project. Previous experience in similar projects is highly desirable. - The sensors that need to be integrated with the Arduino for remote sensing and monitoring include temperature and humidity sensors, soil moisture sensors, as well as motion detectors. Ideal Skills and Experience: - Strong Arduino programming skills. - Proficiency in Lora technology. - Experience with integrating various sensors. - Experience with GPS location data handling. - 1 device is lilygo t-beam v1.2 and the other is Arduino...

I'm aiming at developing a robot that employs basic movement controls, thereby necessitating a detailed circuit diagram backed by Arduino code. Essential aspects to consider encompass: - The robot's main purpose: Robotics - Level of complexity: Basic movement controls - Sensors involved: Pir sensor, Tilt sensor Ideally, I am searching for a freelancer who possesses have an extensive background in robotics, especially with movement controls, and a strong understanding of Arduino. Proficiency in working with Pir and Tilt sensors would be a crucial addition as well. Knowing your way around servo, stepper, and DC motor styles would be helpful, even though this particular project might not necessarily utilize them.