Search found 4 matches

by saibot83
Wed Mar 31, 2021 8:35 am
Forum: ESP32 Arduino
Topic: Serial2 read error but available>0
Replies: 1
Views: 3034

Serial2 read error but available>0

Hi there, I'm using a ESP32 DevKitC with Wroom32 on PlatformIO with Arduino framework. I used the Uart0 at the beginning of my project, but wanted to separate now USB and RS232. So I moved my serial protocol handling to Serial2 and was faced with some problems. After trying and searching for some da...
by saibot83
Wed Mar 17, 2021 2:33 pm
Forum: Hardware
Topic: Need RS232/MAX232 instead of CP2102
Replies: 0
Views: 1672

Need RS232/MAX232 instead of CP2102

Hi forum, I need a RS232 interface for my application. I'm using the ESP32 DevBoard V4. All pins are used, so I cannot use RX1/TX1 additionally. So I added a MAX232 to TX0/RX0 and this is working, but as long as the MAX232 is powered, the USB is not working anymore because both of them, the MAX232 a...
by saibot83
Wed Feb 03, 2021 10:25 am
Forum: ESP32 Arduino
Topic: Behaviour when reading 10 ADC Channels
Replies: 2
Views: 3051

Re: Behaviour when reading 10 ADC Channels

Have you read this through. https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/adc.html Yes sure, but this wasn't very helpful in this case. Anyway, I solved the problem in between. I replaced the 1MOhm Potentiometer with an external Power supply and then everythi...
by saibot83
Mon Feb 01, 2021 1:26 pm
Forum: ESP32 Arduino
Topic: Behaviour when reading 10 ADC Channels
Replies: 2
Views: 3051

Behaviour when reading 10 ADC Channels

Hello, I'm using an ESP32 Dev Module with Visual Studio Code, PlatformIO and Arduino framework. I'm using all of the GPIOs from the the board in this configuration. 10 Anolog inputs to read a signal from external hallsensors. And 10 Digital Output channels with PWM Signal on 200-400Hz. And GPIO15 is...