libgl error pic id driver null - ros2 turtlesim
Hi everyone, I’m currently following the ros2 turtlesim tutorial with Ubuntu on an M1 Mac with Parallels and Ubuntu. Unfortunately, I hit a ‘device not found’ when…
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The Repository is not Signed - Ubuntu ros2 installation
Hi everyone, I’m currently installing ros2 on Ubuntu (with Parallels) and ran into the following error: I was following the official tutorial so I was little…
Read postA4988 Stepper motor RaspberryPi
We’re using a 42shd0034-20B Geetech stepping motor taken from a 3d printer: We’ll be driving it with an A4988 stepper motor controller. You can pick up five packs of…
Read postChange i2c address of ina219
Hi everyone, I wanted to use ina219 with pca9685 but they shared the same i2c address 0x4: 0. Luckily, there’s a fairly easy fix for this. All we need to do is solder…
Read postAWS IoT - error in discovery certificate_verify_failed
Hi everyone, I ran into the following error while using the AWS IoT python SDK: It turns out that this was because I was using the wrong root certificate. In the…
Read postUpdate Wireless Info on Raspberry Pi
Hi everyone, Just a quick post on how to configure wireless info on a raspberry pi. To start with, open the config file: You can then add any number of connections to…
Read postUsing INA219 (GY-219) with the Raspberry Pi
Hi everyone, I’ve just setup an INA219B Voltage/Current sensor on my RaspberryPi. Just thought I’d link the tutorials and libraries I used – there’s a lot of really…
Read postMini-360 DC-DC Buck Converter - Incorrect Voltage 10v Instead of 5v
Hi everyone, I’ve been playing around with a few DC-DC buck converters similar to these ones:…
Read postDuinotech Hall Effect Sensor with RaspberryPi
Hi everyone, This is just a quick post to cover how the Duinotech hall effect sensor module (XC-4434) can be hooked up to a RaspberryPi. The code below will output a…
Read postCould not find a version that satisfied the requirement smbus/python3-smbus
Image unavailable in the original archive. Hi everyone, I ran into a bit of an issue installing smbus on Python3.5. It looks like all you have to do is use smbus2:…
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