Helo all,
I'm woring in Arduino v2.3. using an ESP32 C3 DevKit with the ESP USB HOST library, specifically for USB Keyboards using the hid_host_example.ino, The example code seems to work with hardwired keyboards, but not with the wireless Keypad I'd like to use in my application. I can see the USB ...
Search found 3 matches
- Tue Dec 23, 2025 3:25 am
- Forum: ESP32 Arduino
- Topic: ESP USB HOST Library Issue With Wireless Keypad
- Replies: 0
- Views: 1424
- Wed Feb 23, 2022 7:38 pm
- Forum: ESP32 Arduino
- Topic: Best Frequency Meter ever made with ESP32 - awesome!
- Replies: 100
- Views: 208490
Re: Best Frequency Meter ever made with ESP32 - awesome!
Hi Gustava,
Thank you for posting this great Frequency Meter. It is very accurate and works well. I would like to modify your version to measure the frequency of a second input, but am having some difficulties with processing the second input. I am using the one second timer output for the control ...
Thank you for posting this great Frequency Meter. It is very accurate and works well. I would like to modify your version to measure the frequency of a second input, but am having some difficulties with processing the second input. I am using the one second timer output for the control ...
- Wed Feb 23, 2022 7:24 pm
- Forum: ESP32 Arduino
- Topic: Using PCNT to Measure Frequency on Two Inputs
- Replies: 2
- Views: 8268
Using PCNT to Measure Frequency on Two Inputs
I am using the well established ESP32 Frequency Meter code (https://www.esp32.com/viewtopic.php?t=17018) as a base to modify for measuring the frequency of a second input, but am having some difficulty in processing the second channel. My approach is to use a separate PCNT unit for each input, share ...