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3 votes
Accepted

Why isn't pin 6 on my Adafruit Feather RP2040 being sent high when I ask it to?

Turns out I misled you with my ignorance. I took for granted that the thing labeled "6" on the front was in fact Pin 6, but it's not: Indeed, if I turn it over, that's "GP08": ......
Jeff Schaller's user avatar
2 votes

Why isn't pin 6 on my Adafruit Feather RP2040 being sent high when I ask it to?

The pin labeled as GP06 on the bottom side of the PCB is labeled as D4 on the top side of the PCB. It is pin 4. from https://learn.adafruit.com/adafruit-feather-rp2040-pico/pinouts D4/GP06 - Digital ...
Juraj's user avatar
  • 18k
2 votes

ESP8266 - Can't upload or use Serial Monitor - Ubuntu 22.04 LTS

I found this solution in a separate post - it fixed my issue and I was able to replicate and validate this worked on a second 22.04 machine. systemctl stop brltty-udev.service sudo systemctl mask ...
NVCyberPro's user avatar
2 votes
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Keeping Adafruit Feather charged

From the very page you linked to: "... we added a connector for any of our 3.7V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run just fine straight from ...
ocrdu's user avatar
  • 1,795
2 votes
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High-frequency PWM on an Adafruit Feather M0

For your specific problem: the Feather's D11 is the SAMD's PA16 and on TCC0/WO[6] (use REG_TCC0_CCB2 and PORT_PMUX_PMUXE_F), and also on TCC2/WO[0] (use REG_TCC2_CCB0 and PORT_PMUX_PMUXE_E). An easier ...
ocrdu's user avatar
  • 1,795
1 vote
Accepted

Feather M0 doesn't show up as a COM or Serial port

Turns out the bootloader/USB firmware wasn't loaded in, which is why the double-tap reset wasn't working. I looked into the option of using another board as a programmer to get the bootloader in my ...
bimmui's user avatar
  • 11
1 vote

feather 32u4 servo

The message multiple definition of __vector_17 means, that in your code the interrupt vector 17 is defined multiple times. Often this happens, because 2 used libraries use the same hardware ...
chrisl's user avatar
  • 16.3k
1 vote
Accepted

ESP8266 (Huzzah Feather) I2C scanner finds nothing

This particular issue was due to a faulty wire on the I2C bus. I replaced the wire and I was able to scan and get an address to the I2C LCD controller. I still cannot get text to the LCD. I will ...
mrSidX's user avatar
  • 131
1 vote
Accepted

How do I send non-ASCII keys over the BLE HID connection using an Adafruit nRF52 Feather?

Yo can use the keyboardReport() function to send key-codes with modifiers. Here is an example that will send an ! by sending the keycode for 1 plus a shift key modifier... // The keyboardReport() ...
bigjosh's user avatar
  • 1,553
1 vote

Having issues Connecting to a web server and pulling the data back

My solution to this was to setup a webserver running php code in a Docker container. The php code ran the influxdb query and sends the results
rlgjr562's user avatar
1 vote
Accepted

Adafruit Featherwing Latching Relay lamp switch

I will add the final code here. It took me weeks to find a starting place and many hours of trial and error to sort it all out. With help I was able to get a stable working switch. This code was ...
Siburmax's user avatar
1 vote

rfm69 on M0 Express... init() doesn't work

The "init failed" do not appear. Everything stops at "//******". I have compared to another RFM69 program. I have added a line " digitalWrite(RFM69_RST, LOW);" at the ...
JL Ecole Decroly's user avatar
1 vote

Cannot successfully implement singleton

I had the same problem when referencing classes from multiple files, remember to put at the top of your header file (ending in .h) #pragma once on files that get referenced more than once! Edit1: Also ...
Qubo's user avatar
  • 31
1 vote

Neopixel code not working on Adafruit Feather board

Pin 15 is the serial RX pin which connects to the USB port so you should not use it. From the Feather pinouts page about pins 15,16 : "These are connected through to the CP2104 USB-to-Serial ...
tavis's user avatar
  • 521

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