Color Timer with Circuit Python
This color changing timer shows when an hour passes by going from blue to red in reverse rainbow order. It’s a subtle and non-intrusive reminder… Read More »Color Timer with Circuit Python
Microcontroller
JDY-40 Wireless Broadcast
A commenter on a previous post asked about JDY-40 broadcasting to multiple nodes, where only a specific remote node will reply to the broadcast. This… Read More »JDY-40 Wireless Broadcast
Simple Game Buzzers with Arduino
My son was in need of game buzzers on short notice. So I put together something quick & simple that got the job done. This… Read More »Simple Game Buzzers with Arduino
DIY GPS Unit with Arduino Uno
This DIY GPS unit consists of an Arduino Uno, SSD1306 OLED display, and BN-220 GPS. It is powered by a 9V battery. In another post… Read More »DIY GPS Unit with Arduino Uno
Arduino Heap Space Workaround
I thought this GPS project would be done quickly, but found myself scratching my head for days on a weird issue. I still don’t know… Read More »Arduino Heap Space Workaround
C Linker and Fresh Eyes
It’s often valuable to set a project down for a while. After setting down the Flight Logger project for a few months, I came back… Read More »C Linker and Fresh Eyes
Custom Characters with an LCD 1602
Custom characters can be used to draw any simple image on an LCD 1602 display. The gitbub repo includes a python script to generate display code from any image.
ESP-Now With MicroPython
Testing a MicroPython build that supports ESP-Now. Example code for some initial tests on ESP32 dev boards included.
Pulse Width Modulation Outsourcing To PCA9685
These are my notes on setting up the ATMega4809 microcontroller for dimming LED lights using a PCA9685 PWM controller IC.
Servo Motor Control With ATmega4809
Building on the PWM input capture, this is an active passthrough program that drives servo motors. This is a key step toward flight stabilization and control.