August 2020 Meeting Report

PIC CLUB NOTES AUGUST 2020

Alex :

-New tool tips:

-repair over-tightened PCB holder alligator clips

-obtain 4.5V from a 6V battery holder.

-modified Bunnings LED Flip Switch to run off USB 5V.

-use a thumb joystick and Arduino Pro Micro to control video game camera movement.

Alex's github :

https://alw1746.github.io/projects/

Martin :

Martin talked about his home automation system in Jakarta and showed his prototype with an ESP32 and STM32. He designed a PCB for it and got it manufactured cheaply at jlcpcb.com.

For pcb layout, used expresspcb plus a hack to get the gerber files.

Andrew :

Andrew outlined some ideas for linking several Pro Mini 5volt boards to an Arduino UNO r3 using minimal cost

bell-wire in a 1-wire bus system (somewhat similar to that used by DS18B20 temperature sensors, for which an Arduino library exists)

but using a higher than 5volt bus voltage thus supporting a chain of Pro Mini controllers with various analog transducers. Currently

awaiting delivery of parts.