Electronic Projects

 

# Project Info
01 Breadboard Power Supply Module 3.3v or 5v selectable. 3 different inputs (barrel jack, miniUSB, screw terminal block).
02 5-Button Switch Module 5-button terminated switch module for breadboards.
03 Real Time Clock (RTC) Module Real Time Clock: PCF8523 RTC chip with battery backup, for breadboards.
04 Buzzer-Type Speaker Module Small, unobtrusive, adjustable, amplified buzzer speaker designed for breadboard use.
05 LED Dot Matrix Module: Chicago Dice! Arduino Nano microcontroller-based game, with expansion connector.
06

QuadRupler 2.4" and QuinTupler 3.5"

Powered expansion boards for Adafruit Feather microcontrollers like the Adafruit Feather M4 Express.

Each PCB permits 3 or 4 FeatherWings to attach to a 2.4" or a 3.5" FeatherWing TFT-touchscreen display.
07 3v3 to 5v I2C/SPI Level Shifter Voltage level shifter for both I2C and SPI.
08 ItsyBitsy Roller Needs rework) Adafruit ItsyBitsy M4 Express or ItsyBitsy RP2040 based Neopixel gaming board.
09 Bakk Tracker Adafruit GPS used to track your way back to your starting point.
10 QT-PY RGB LED Die

Project A: Adafruit QT-PY and a 3x3 matrix of regular LEDs.

Project B:  Adafruit QT-PY and two 3x3 matrices of RGB Neopixel LEDs.
11 Neopixel 3x3 Array Neopixel 3 x 3 array board to add to your projects.
13 SMT 3v3 3A / 5v 5A Power Supply 3.3v/5v, barrel jack or miniUSB inputs. Attach to your breadboard or solder to your project bd.
14 Neopixel 5x5 Array Neopixel 5 x 5 array board to add to your projects.
15 Nano Neo Nano-based RGB Neopixel board with 3 add-on: power supply, amplified buzzer and 5x5 Neopixel array.
16 Nano Neo Strands Arduino Nano-based driver board for up to 4 strands of Neopixel RGB LEDs.
17 QT-PY 8x8 RGB LED Dice Adafruit QT-PY driving two 8x8 RGB LED matrices.
18 Single-Multistep CPU Clock Module A PCB using Ben Eater's 1-500Hz CPU Clock design for both single-step and multi-step functions.
19 Variable CPU Clock Module A PCB using Ben Eater's 1-500Hz CPU Clock multi-step design.
26 Project 26: CPU Clock Divider A variable CPU clock with faster Rise Time (based on the 74HC590).
27 Project 27: Nano-Atmel Programmer Arduino Nano used as chip programmer for ATmega328, ATtiny84 and ATtiny85.
27a 'Coding in Bare Metal C' Use 'bare metal C code' to program an ATtiny85 as a square wave generator for use as a CPU clock.
28 Project 28: ATtiny85 CPU Clock ATtiny85 microcontroller used as a 0.5Hz to 50Hz clock generator. Includes "How to Program an ATtiny85".
31 Arduino Shield: 7-Segment LED Displays Dual 4-bit 7-segment LED displays with RTC and Temp/Hum sensor.
31b Arduino Shield: 14-Segment Displays Dual 4-bit 14-segment LED displays with RTC and Temp/Hum sensor.
32 Arduino Shield: 16x8 Matrix Display Motion-activated 16x8 LED matrix display with RTC and Temp/Hum sensor .
33 Ada-3315_TripleExpBrd Triple Expansion Board for Adafruit #3315 2.4" TFT-TS Display.
34 Ada-3651_TripleExpBrd Triple Expansion Board for Adafruit #3651 3.5" TFT-TS Display.
37

UNO R3 Prototyper

Extended prototyping shield for Arduino UNO R3.
38

AVR 8x32 LED Dot Matrix

Sensor board but with AVR (Arduino UNO clone) SPI-based 8x32 LED Dot Matrix display.
39

ESP32 8x32 LED Dot Matrix

Same as above but with ESP32 I2C-based 8x16 LED Dot Matrix display.

40

 AVR & ESP32 LED Module Tubes Four 4-digit 7-segment LED modules or tubes  provide time & date and temp & humidity.

42

 ESP32-S3_Sensors & Touch ESP32-S3 with 4 touchpoints and 5 sensors (Tc/Hu/BP, CO, CO2, TVOQ, lux).

45

 ESP-NOW Master & Sensor Nodes Ten AHT10 sensor node boards send their data to the master board via ESP-NOW protocol.

46

 ESP-WIFI Inside-Outside Adafruit Feather ESP32-S3 that monitors both inside and outside weather, sunrise/sunset, etc.

47

 ESP-CYD WM, NT, ST News Ticker, Sports Ticker, Weather Monitor built on the CYD (ESP32-2432S028R board).
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Updated 2025-10-31

 

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