How to write programs for a custom SAMD21 board using Arduino IDE
Oct 12, 2021 · Here's a link to a zip file containing a minimal bootloader for the SAMD21E17D: Lower memory SAMD21 variant - #20 by MartinL. After burning the bootloader you can remove the …
Bridge from NINA-W102 (ESP32) to SAMD21 for Classic Bluetooth HID …
Jan 5, 2025 · Hello everyone! I want to create an HID proxy based on an Arduino Nano 33 IoT board. The idea is to connect to a keyboard via Classic Bluetooth, receive its HID data, and send that data …
Excellent SAMD21 Articles by Stargirl (Thea) Flowers
Jan 7, 2022 · If anyone's interested, I stumbled upon these excellent, visual and interactive SAMD21 articles by Stargirl (Thea) Flowers:
SEEED XIAO SMD21 refuses to upload - Uploading - Arduino Forum
Apr 21, 2024 · Windows 10 OS Arduino IDE both ver 2.3.2 and 1.8.19 tested Preferences correct in both versions of IDE Correct board selected in IDE Correct port selected in IDE I have a XIao SAMD21 …
Cannot get SAMD21 Interrupt to function - Arduino Forum
Jun 1, 2025 · I've been working on this for a couple of days. However I'm at a loss as to why my interrupt is not working. Issue is the variable (PWMcount) that should be incremented in the ISR is not …
Analog speed in SAMD boards - 3rd Party Boards - Arduino Forum
May 16, 2023 · Documentation comment that in arduino UNO analogRead() should take around 100 ms Ref: analogRead() - Arduino Reference But what about other boards? Im specially interested in …
Sparkfun SAMD21 dev breakout issue - Arduino Forum
May 7, 2025 · Since the SAMD21 is a 3.3V ONLY processor, if a voltage > 3.3V was ever applied to the analog input, you may have damaged the ADC. This thread shows how to get 16bit resolution using …
SPI doesn't work at all: SAMD21 + AS4432 - Arduino Forum
Mar 12, 2025 · Hello, Environment: MCU: Seeeduino Xiao SAMD21 RF: AS4432-SMD Arduino IDE v.2.3.4 Board Manager: Arduino SAMD Boards (32bits ARM Cortext-M0+) I have an idea to make a …
SAMD SPI slave with DMA - Zero - Arduino Forum
Nov 27, 2024 · Hi, I've been trying to set up an SPI slave to use DMA. I have already implemented an SPI slave using interrupts. This works but handling the interrupts requires a few microseconds for …
SAMD21G INPUT_PULLUP not working - Arduino Forum
Jun 1, 2025 · A Seeed XIAO SamD21G board does not seem to work with the either INPUT_PULLUP nor INPUT_PULLDOWN. IDE = 2.3.6 SEEED XIAO board v1.8.5 My test results: only one pin and …