Tag electronics

TEMT6000 Illuminance Math with ESPHome

I use inexpensive TEMT6000 sensors in various projects to detect the level of ambient light. I originally hand-coded the firmware, but now I use ESPHome. My projects are usually 3.3V because I use pretty bare boards like ESP-12F instead of…

Dealing with ESPHome Disconnects

I have a bunch of ESPHome/ESP8266 projects, several of which are have been plagued by repeated disconnection during seemingly random times of instability. Sometimes they’ll be fine for days, and then suddenly they start acting up again, and it can…

Stepper Driver Noise: A4988 vs DRV8825

We made a video to show the difference in noise between the Pololu A4988 Stepper Motor Driver Carrier, which has 1/16 steps, and the DRV8825 Stepper Motor Driver Carrier which has 1/32 steps. These drivers are common in RepRap 3D…

Video: How to Make Bare Wire End Stops

[sc:3dclub-intro] In this video, Jacob shows an easy way to make very simple and inexpensive (yet dependable) bare wire end stops for your 3D printer (or other motion control project). This design helps to “demystify the box” by putting all…

Information for Maker Faire Attendees

Greetings Maker Faire North Carolina Attendees! It was fun speaking with many of you today. Here is a collection of links to bots and technologies that I spoke about: StickBot (the simple 6-legged walking robot) — the latest version, with schematics…