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
Ben Emmett
Simple Wireless Serial Communication
Notes on basic setup & testing of the JDY-40 wireless serial port module. These are simple wireless serial communication modules that work fairly well and… Read More »Simple Wireless Serial Communication
Make Ping Pong Poké Ball with 3D Printed Mask
How I made ping pong poké balls for a kids birthday party using a 3D printed mask.
LED Matrix Animation
Simple process for basic LED matrix animation using a custom MicroPython library.
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.
Coordinate Transform Notes
Notes about generating and applying a coordinate transformation matrix using Euler angles.
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.