esp32

I'm trying to launch a high-altitude balloon later this Spring or Summer, and made a board for telemetry and other data to be sent back to my ground station. It is based around the Seeed Studio XIAO ESP32-S3 Sense, as it's really cheap and makes it easy to integrate a camera Images will be...

Hey, I´m currently trying to convert a 20kHz PWM Signal generated with an ESP32 to DC voltage. Goal is to control a hydraulic proportional flow control valve with a DRV103 solenoid Driver. The DRV103 needs an analog Input Signal from +2.2 - +5V to activate the Output. With the ESP I´m able to...

I am trying to design a schematic of Esp32 thourgh chip CH340C. I'm a bit concerned Is there any isssues. Please help me

Hello, I want to use the TDC1000 with a single piezo electric transducer and wave reflector to measure the TOF of a liquid (submerged). I want to interface the TDC1000 with an ESP32-S3 but I am not sure if I got the right connections. I just need to get a TOF value from the sensor. I am new to...

Hey everyone, I just received my first ever SMD only board and i really thought it was gonna work on the first try as a followed a tutorial on how to implement it without changing to many things on my own. When it arrived i noticed that i selected the wrong LDO (a AMS1117 5.0 instead of the 3V3...

Hi Everyone, I am VERY new to electronics and teaching myself how to put together basic PCBs so forgive me if this is a total flop. My goal with this project is to create a PCB that can act as passive or transparent volume control. I want to be able to plug in my record player to the input...

I'm currently using an Elecrow 7" 800 x 480 LCD panel with an ESP32-S3 and LovyanGFX for my project. I use sprites so the display is quick and smooth and it works well. I use the touch capability to navigate through options. I also use the ESP32 TWAI (CAN) to send data to the display to control...

Hi guys, I have a stable circuit that was working properly but it looks like when the system is running on USB the display is not flickering, but as soon as battery becomes the primary power source the display starts flickering. I have checked all the voltages, everything is working fine. I...

Good evening, I have a project I have in mind that uses the ESP32 to read sensors, preprocess the data and stream back the data to a host using Wifi, or Bluetooth with UDP protocol. The data are then analysed and interpreted by a software and sent back to the ESP32. I would like to use the...

Hi, I’m trying to connect an ESP32 (link) to a WS2812B LED strip (link), but I’m getting the following errors in the serial monitor: E (21652) led_strip_rmt: led_strip_rmt_wait_refresh_done(85): disable RMT channel failed E (22155) rmt: rmt_tx_disable(774): channel can't be disabled in state 1...

Hi, I want to be able to turn on and off the video (i don't mind if other stuff like audio also turns off) of HDMI and DP cables (male to female) coming out of my PC/GPU, with esp32 powered by my PC USB. For HDMI I used pin 1 and I control it with relay that controlled by ESP32. For DisplayPort...

hello, I'd like to know what's the best combo between a microcontroller and a 1280x800 MIPI LCD screen like this. Is the ESP32 powerful enough to run that display, knowing that the image on the display will update quite frequently? what microcontroller (with WIFI connection) is best for that...

I’m a software engineer trying to build a TickrMeter as a fun side project, but I have no experience in electronics. I’ve spent the past two days learning from GPT and YouTube, and while the coding part seems straightforward, I’m struggling with the hardware. Here’s my setup: ESP32 for the...

Hey everyone, I have a latch circuit designed for powering an ESP32. Here's how the circuit operates: when the SW6 button is pressed, it activates transistor Q6 NPN, which, in turn, opens the U1 MOSFET to power the MCU. Once the MCU boots up, it sets pin D8 to HIGH, which activates transistor...

Dear all, first, thanks for greating me in your community and sorry if I'm posting in the wrong section ! For a quick presentation, I'm from France, I'm 38, I'm an engineer in IT, mostly embedded safety SW for automotive. I've got some basics in electronics from school, but lost most of it in...

Hello everyone, I’ve been working on a PCB design for my project, and I would appreciate any feedback or recommendations you can offer. The design includes: ESP32-C3 for control and communication SIM808 module for GPS and GPRS with SIM card support MLX90614 for temperature measurement...

I would like to make a device using an esp32c3 and an optocoupler to allow me to actuate a separate device comprised of a motor running from a different power source (4.2V, 6V or 12V). The esp32c3 runs from 2x AA alkalines and would wake up periodically to run the motor for a minute, then go...

I record a timestamp everytime I receive a data frame in udp between an ESP8266ex and an ESP32 such that : if (packetSize) { frame_size = UDP.read(buffer_t, 30); if (frame_size > 0) { timestamp_receive = micros(); data_adc_serial[10] = timestamp_receive; for (int i = 0...

Hi, i am trying to make MODBUS TCP SLAVE code based ESP32 platform. For modbus_TCP, I use this library: https://github.com/emelianov/modbus-esp8266 Plan is to have one dedicated task only for MODBUS_TCP. Please refer below extraction from compete code : void setup() { Serial.begin(9600)...

Hello, I'm looking for some advice on a project I'm doing and more specifically the best microcontroller to approach this. I've tried an approach already but reached a number of hurdles and need to return to square one. The project is a physical desktop intercom which takes only a power...