Microcontroller Jobs

We have a couple of toy RC cars and we want to develop a new mobile app for them. Like this one: [login untuk melihat URL] We want you to communicate with the manufacturer and ask them for the communication protocol and how commands are being sent to the toy. If that did not work, try to find the communication protocol by buying the RC toys and reverse engineering the app or firmware.

I have a circuit design of TP4056 with protection a Lithium-ion battery charging module. I would like to make the following changes into that. For 1W LED output 1. Adding a 3ohm (0.25W) resistor before +VE output 2. Adding a 1N4001 Diode after -VE input terminal. 3. Separate PCB of 3 SMD LED in parallel, (3.3V, 0.4A max per led) 4. Adding trademark on PCB 5. Adding 1 SPST switch before B+ output ...

Make a dual Brushless Sensored/sensorless motor controller that can handle up to 15V 20A with an STM32 chip. Microcontroller to receive SPI input. Schematic, PCB and code required.

control load from out of network and able to on/of the load and set timer to repeat cycle daily at the same time till we re modify it.

I need an Arduino UNO programmed to monitor an analog voltage input at pin "A0". This will be a DC analog voltage signal that rises and falls in peaks. These rising and falling peaks will usually be 0.1 to 1.0 second long. As it goes, if the analog input is very low or noisy, I need the "red" LED to go on at output Pin D0. If the voltage level gets to 2.0V and starts to fall, I...

Hi there...we need a PCB designed that is a variation of what you would find in a small/portable bluetooth speaker. We are not experienced in the particulars of PCB design (we are mechanical engineers) so we need to employ someone who can: -design the PCB to our size specifications (circular, around 60mm diameter) -choose the proper components to achieve our goal -work with us to arrange for PCB...

I tried a bit myself to make an antenna design but it was way too complicated, I need an antenna made in the PCB, it needs to have 50ohm impedance and have both wifi and Bluetooth compatibility, if possible made on [login untuk melihat URL] budget MAX 40$

what we need is a arduino medical device that contact control center when emergency. we will need full support and final SMD PCB design. the device should send the data by DTMF. after we done this project we will need to upgrade it to work also wifi and GSM and some other features.

Laserdock is an USB connected laser projector with its own proprietary laser software LaserOS. [login untuk melihat URL] Please visit this page to get an feel of how it works before reading the remainder of the job post. Currently Laserdock hardware is connect via USB to its host software. USB has many restrictions and we've finished next gen of wifi/ethernet enabled laserdock. We would like...

I am looking for potential electrical engineers for doing small tasks related to following fields 1) Control System 2) Radar theory and Satellite Communication i will share work details in chat

I am a streamer on [login untuk melihat URL] and part of my live stream experience is hitting a small 7" desk gong when I get an alert (follow, subscription, donation, etc). I am looking to have the gong hit be automated based on when the alert happens. I have read ways of setting up a Raspberry Pi/Arduino to a servo/motor and having it read from a network but I am not familiar with Twitch w...

Preciso controlar 3 motores de passo nema 23 com joystick KY-023 (um controla 2 eixos e outro um só). Controle deve ter os dois sentidos do motor e velocidade conforme avanço do potenciometro. Por conveniência gostaria de usar a CNC Shield V4 + 3xDrivers A4988 + Arduino Nano (não sei se tem portas suficientes).

Looking to have a single gang, pushbutton wall switch designed with a MCU, Wifi and bluetooth connectivity, with a solid state relay to trigger 120vac. Looking for it to be safe up to 20 amps. Also looking for someone who may know something about putting the PCB into a box, where to source the box from or more information about it. Looking for a MVP/prototype as a result.

I need some body can teach me and guide me to be a good full stack developer and IoT expert by using ESP32. the course needs the languages like HTML, CSS, and JS as front end developer. how to deal with server as back end developer. also, how to deal with ESP32 communication via MQTT or BLE. how to write codes on ESP by C++ mobile app development it is a long tearm course.

Gsm module ultra sonic sensor Water tank alert system I need code for arduino

Schematic will be provided to the freelancer that is awarded this job. An NDA is required. Please see the attachment before quoting and make your quote the final dollar amount that you will accept to do the job.

Hi, We have a requirement to build a Solenoid driver circuit. Specifications 1. Total Number of solenoids: 30 2. Solenoid specifications a. Rated Operating Voltage: 12v b. Rated Current: 0.8A c. Power Consumption: 9.6 watt 3. The solenoid will be driven by a 3.3v rated microcontroller like ESP8266 or ESP32. 3. We will buy external DC power supply according to provided specifications. Deli...

Please read this in detail This is an existing project, we are looking for maintenance and feature upgrades Looking for someone that has experience in a very Large Arduino codebase, using Visual Studio for the code atmosphere. This robot uses XBEE and BLE 5.0 for communication, with PID , using a tablet IOS or Android for control. Please only apply if you have a ton of experience in Arduino and...

You must speak conversational English You must have at least 30MB internet download speed to watch live stream of machine working We currently use Visual Studio to program the system, Arduino IDE cannot handle size of system. We have a device that rotates 360 degrees, and has a 12 Volt, 100Amp battery on it. [login untuk melihat URL] mini The code base is very large, at least 80K We have XBEE Pro...

I'm trying to make a simple UV data logger for a uni project. I am having trouble successfully finding/connecting to a few sparkfun VEML6075 UV sensor breakout's that I'm wanting to read values from. I have the VEML6075s connected to SD/SC ports on the Adafuit TCA9548A multiplexer using a UNO R3. When plugged in all UV sensors are lighting up and appear to be connected properly. How...

Purchased a Raspberry pi 4 and Gyems gimbal motors. the Gyems RMD-S-7025 motors use rs485 communication. What I need is some simple coding to test the motors. I have tested the motors via the motors own test app so I know they work but I am now looking to get them working with Raspberry and python code. So if there is someone who understands rs485 protocol and can get raspberry and coding in pytho...

full duplex, self-healing, light-weight, fast and dynamic mesh. Nodes can be variable upto 50. root node should be able to connect to router and communicate with it. Also root Node should be dynamic.

I would like to hire a Matlab expert to simulate a two wheel robot. You need the following skills: Matlab. PID and state space control. Arduino programing.

It Is needed to design PCB for device on stm32f429igt6 mcu, with 10 inch tft LCD (datasheet sent by request for interested freelancers) with resistive touch panel (for control and HMI) to show values from sensors. Device has 6 ADC of transmitter (4-20mA or 0.5-5V output) and alarm system as Buzzer and Speaker for playing wav - files. All tech requirements and details you may see in attached file. ...

Sine Wave Inverter Capacity 900 VA, Rated Power 756 W Supports single [login untuk melihat URL] for sensitive appliances with Sine wave out-put. Three Stage Charging for safe & efficient charging and longer battery life. 4-step battery type selection. long life with overload protection with auto reset power conditions with rugged technology design for high performance and longer back-up time. ...

A Wireless Bluetooth Streaming Speaker circuit design Portable Wireless Speaker which has good connection and 360° Stereo Sound with Powerful Bass & Mic. The various voltage and current rating should be present including input and output values and supply data. The technical information is necessary with the circuit diagram.

To use Atmel Studio 7.0 to simulate the behaviour of the ATmega32A microcontroller

I have purchased a very inexpensive measuring tool that measures 18 meters. I would like to improve on it. Make it smaller and more accurate. I need someone who understands how to design horns for ultrasound, transducers, amplifiers, pcb design and coding.

an automated growing project with a few sensors, relays, switches and lights everything is in the text file below.

I am looking to have Wireless LoRa sensors coding to transmit readings from a sensor. The chip will need to send out a DC signal and read the DC input value transmitting this data over a LoRa network and output to a reporting platform. This will be a one of coding contract for a new start-up company which may lead into further coding contracts. For further information please contact me.

Hi We are looking to develop a simple communication Module. We want to Use LORA RA02 which should be communicating in 1 : N using a PIC micro controller. In the sense the Lora RA02 should be addressable and each Lora should be able to communicate with each other. Preffered Microcontroller would be PIC24FJ256GA702 or PIC 18F4520 . We would be requiring the programme and Circuit Layout.

I need a electronic PLC programmer. [Removed by Freelancer.com Admin for offsiting - please see Section 13 of our Terms and Conditions]

Phát triển hệ thống MDVR. Từ SDK phát triển, chỉnh sửa firmware phù hợp cho các module trên thiết bị.

We are looking for someone to put together an adafruit based concept demonstrator prior to manufacturing

Hi guy's, I want to build a bldc motor controller with DRV8353 as driver and STM32F746vt as controller... I have the hardware board.. I need an experience man with exp in drv driver, to make the basic driving code to drive the motors.

Hi, We are looking for electrical circuite designer for creating an emergency calling box. The calling system should work with GSM-OFC-WIFI modes. We need only circuit design, we will get manufactured the same at our own. Attached the image for the purpose , please refer and ping me for more details. Thanks

I would like to develop a dispenser with a touch screen, from prototype to production.

We are looking for a very talented engineer (or team) that can create a high voltage, bipolar DC to DC converter supplying voltages up to 1200Vdc. We are needing a small compact design that doesn't use transformers in the design. We will share further details of the design later.

I will do the hardware side of the system software. Integrations of ST or Microchip company will be used. - Modbus RTU 485 - Modbus TCP/IP - Information transfer will be provided wirelessly using Wireless (Esp8266 HTTP sever, MQTT, Router Mode), and wired using RJ45 connector Port, 10/100 Mbps speed, Modbus / TCP, TCP / IP, UDP, DHCP, Bootp, SNMP, HTTP, CGI, SNTP, SMTP protocols. Maybe later, comm...

PLEASE NOTE ***THIS IS A PART TIME 20 HOURS PER WEEK POSITION*** We are a self-development company helping people achieve more goals in their life. We are looking for an electrical engineer willing to work on an exciting new product development project to shape the development of the first minimum viable product. The electrical engineer that will be hired will have specific knowledge or experie...

It Is needed to design PCB for device on stm32f429igt6 mcu, with 10 inch tft LCD (datasheet sent by request for interested freelancers) with resistive touch panel (for control and HMI) to show values from sensors. Device has 6 ADC of transmitter (4-20mA or 0.5-5V output) and alarm system as Buzzer and Speaker for playing wav - files. All tech requirements and details you may see in attached file....

we have a project that require a very lite pcb board 6 inch by 6 inch with distribution of power to 384 points on he board , each point can get one of 4 different low voltage power level of current each time , this distribution and controlled by a programmable IC and data connection to the IC with a wifi connection

making a customized key fob with passive rfid tag and readers.

Looking for an interface to control a robot either from the local network or the internet. We would like to use a router in bridge mode to connect to the local network. You are welcome to suggest components. A raspberry pie with camera is one possibility. We are looking for low latency. The ability to hook up a standard controller (PS3 or XBOX) We would like sensor data fed into the control interf...

Hello. Our machines use Siemens Simotion as motion controller and WinCC Scada software for the HMI. After a windows failure, we had to restore from backup, however the wincc runtime is not communicating with Simotion now. We need someone with the proper expertise with Siemens motion control systems to address the issue and fix it. Thanks

We have schneider PLC, we need this programmed using EcoStruxture Machine software. The controls is for HVAC purposes so controlling temperature, pressure and actuators.

Project to create a environmental monitoring unit. We want a "rough" estimate of cost for such a project. Key features: KiCAD, STM32CubeIDE, C, Public software and hardware. Energy harvesting (solar cell + battery). Outdoor environment [-40gC, 40gC] Temperature, rain, sun sensors. Sound recording (for birds and pollinators). Ultrasound (? for bats) // Göran Hasse

circuit to Dim 240v dc light from esp8266

Modification of existing 8051 code and hardware to 1. automatically rotate stepper motor based on feedback from a photo-interrupter 2. read and display encoder counts 3. control temperature using 18B20 sensor 4. redesign of existing PCB important: candidate should be based in Delhi to be able to check code using existing hardware

need a mechatronics/electronics engineer to develop me a biometric actuator based lock in smallest size.