Search found 3 matches

by MotoDan
Tue Dec 23, 2025 3:25 am
Forum: ESP32 Arduino
Topic: ESP USB HOST Library Issue With Wireless Keypad
Replies: 0
Views: 1424

ESP USB HOST Library Issue With Wireless Keypad

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 ...
by MotoDan
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 ...
by MotoDan
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 ...

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