AddOhms by Bald Engineer

In part 3 of the DIY Arduino series, James solders, turns on, and, debugs the Pyramiduino! In this episode you can see how to solder parts with a toaster oven, test a board with a scope, and program an Arduino bootloader. Episode #27 Show Notes and Links Support AddOhms on Patreon Order Pyramiduino R5 from OSHPark JEDEC Reflow Profile via Diodes Inc. MG Chemicals Low-Temp Solder Paste via Digi-Key FTDI Friend from Adafruit Coin Acceptor Live Stream Open Vapors Reflow Controller on Hackster.io Micrel MIC5504 datasheet 5 LDO Considerations from baldengineer.com Rohde & Schwarz RTM3004 Oscilloscope Code and Final Schematic on GitHub Choose your side (KEY-cad or KAI-cad) T-Shirt from Contextual Electronics Related Videos Part 1: Schematic in KiCad for DIY Arduino Part 2: Creating DIY Arduino PCB

This week the bald engineer unboxes swag from electromaker.io, programs the Adafruit Coin Accepter, with a Pyramiduino, and answers questions along the way. Interesting time code jump points: 7:59 - See Programming Bootloader Clip 12:11 - Coin Acceptor Programming 18:00 - Pulses on the R&S RTM3004 Oscilloscope 42:05 - Code working as intended!

The primary tool I use to create AddOhms animations is Adobe After Effects. In this live stream, I take you through the process I use. For an upcoming video, I needed an animation showing how the Arduino Uno’s auto-reset circuit works. As you can see, what is on screen for a few minutes (at most) can take several hours of effort!

This video is part of a 3 part series, with the other two parts coming in the future. When it’s time to design a custom PCB for your project, you might be wondering how to design in an Arduino. This video shows the pieces that go into the schematic. The next video will show how to layout the PCB. And after the boards come back, I will show how to turn it on.

A common question that comes up about pull-up resistors: what value do you pick and why not just use a piece of wire? In this follow-up electronics tutorial, the bald engineer looks at how to pick pull-up resistor values. Show Notes Pull-Up Resistor Tutorial (Episode 15) AddOhms Discord Server Arduino Internal Pull-Up Resistor Tutorial (baldengineer.com) Chuck Norris On Pull-Up Resistors (baldengineer.com)