Search found 3 matches

by digidax
Thu Aug 27, 2020 4:45 pm
Forum: General Discussion
Topic: Bluetooth connection to ELM237 ODB2 Interface
Replies: 0
Views: 1881

Bluetooth connection to ELM237 ODB2 Interface

Hi, have trying to connect to a Bluetooth ELM237 adapter. Doing this with the Android app "Serial bluetooth terminal" is working fine but can't do it with the ESP32 example: //This example code is in the Public Domain (or CC0 licensed, at your option.) //By Victor Tchistiak - 2019 // //This example ...
by digidax
Thu Aug 27, 2020 7:27 am
Forum: General Discussion
Topic: measure PWM frequency and duty cycle
Replies: 0
Views: 2143

measure PWM frequency and duty cycle

Hello, a servo actuator sends a PWM signal on a diagnosis port. I have to analyse two situations: 1st job: There are 5 frequencies which are specifying an error: 100, 120, 140, 160 and 185 Hz. 2nd job: If there is no error, the PWM frequency is 200 Hz, then I have to analyse the duty cycle, which is...