aemmenet / polylab Goto Github PK

• 2 layer PCB designed with KiCad 7 EDA.
• KiCad learned with https://www.udemy.com/course/kicad-like-a-pro-3e/
• PCB manufactured by: https://aisler.net/
• proprietary form factor: 1/2 credit card size ( 53.98 x 42.8 mm)

Microchip AVR64DD32 (QFP32 socket). Replacement or successor for the old ATmega328P?

• 8-bit MCUs: Still Thriving After 50 Years
• AVR® DD Product Family Overview
• AVR Peripheral Deep Dive
• https://www.arduino.cc/en/software Arduino IDE
• https://github.com/SpenceKonde/DxCore Arduino support for the AVR DA, DB-series and DD-series
• SerialUPDI programmer Flashing Optiboot bootloader ok with the above versions

Flashing Optiboot Bootloader via UPDI Target Header.

• https://www.mikroe.com/mikrobus
• https://www.mikroe.com/click
• Sensirion & mikroBUS™ , ETHzürich & mikroBUS™ , Microchip & mikroBUS™ , u-blox & mikroBUS™

MCCI LoRaWAN LMIC-node connected to TTN ...
Tested with Arduino IDE 1.8.19 and DxCore Version 1.5.11 (No JoinAccept with Arduino IDE Version 2.x)

Graphics with SPI TFT displays on mikroBUS™ socket ...
Adafruit example sketch graphicstest.ino with ST7735 and ST7789 library. Initialize ST7789 240x240 with tft.init(240, 240, SPI_MODE3) https://tigoe.github.io/display-examples

u-blox PAM-7Q GPS Module added (--> TTN-Mapping walk) ...

needs to be synced with RTC or GPS ...

PoLoLu Stepper Motor Driver on mikroBUS™ Modul ...

DHT22 Temperature/Humidity Sensor (incl. Payload Encoding / Decoding) ...

Servo Sweep (#include <Servo_DxCore.h>) ...

Test mikroBUS CO2 click board with Sensirion STC31-sensor on my "polylab" Development-Board with mikroBUS socket. Sketches with Sensirion-Arduino library and SparkFun Arduino Library for STC3x sensor. CO2 gas for testing produced with baking soda and water.

First successful TTN test with Grove Wio E5 LoRa-E5 Arduino Library from Sylvain Montagny.
https://github.com/SylvainMontagny/LoRaE5
Successful upload of DHT22 sensor data.
Successful switching LED_BUILTIN according to PayloadDown value (0x00/0x01)

Next project: mikroBUS Board with LoRa-E5. WIP

• 2 x 19 pin male pinheader with Arduino/MKR- Adafruit/Feather- like pinout
• mikroBUS™ socket
• 2 x Grove connector (I2C & UART)
• 2 x 4-pin header (female) with Grove Digital/Analog pinout
• 1 x Qwiic® connector
• MicroUSB (CH340N USB to UART converter)

• Barrel Jack 7-12V DC, 3.5*1.3mm ( to 5V with AMS1117-5.0)
• MicroUSB (5V to 3V3 with AP2112K-3.3)
• JST PH 2.0 for Single LiPo cell (MCP73831 charge controller)
• 6-pin UPDI-target-header (male)

This board is still a WiP! There is a list with many changes, improvements and extensionss for the next version.

Breakout adapter from RFM95W module to mikroBUS™ socket

8 daisy-chained NeoPixel

LED's on all pins for mikroBUS™ socket testing

PoLoLu Stepper Motor Driver

PCB on doubler board

PCB on breadboard

PCB stacked

powered with DC (9V battery), USB or LiPo

made with regular protoboards and pinheaders

• Low Power / Sleep Mode
• Energy Harvesting (https://www.tindie.com/products/jaspersikken/solar-harvesting-into-li-ion-battery)
• Modelling a case with OpenSCAD (done) (https://openscad.org)