When we reported about ATMegaZero, an Arduino Leonardo compatible board following Raspberry Pi Zero form factor last July it was not available for sale just yet.
The good news is that the Microchip ATmega32U4 board is now available on GroupGets for $24.99 plus shipping. The group buying campaign is expected to end around September 30th, and the boards will ship right after that.
Here’s a reminder about ATMegaZero specifications:
- MCU – Microchip ATmega32U4 microcontroller running at 16MHz with 32KB Flash, 2.5KB SRAM, 1KB EEPROM (Arduino Leonardo compatible)
- Storage – MicroSD card
- Display – 32-pin OLED display port compatible with 30-pin SSD1306 and SSD1331 based displays
- Wireless Connectivity – 8-pin header for optional ESP8266 ESP-01(s) WiFi module
- Expansion – 40-pin Raspberry Pi-inspired GPIO header with UART, SPI, I2C, analog input signals
- Debugging & Programming – Micro USB port, 6-pin ICSP header
- Misc – 4x LEDs, reset push-button
- Power Supply – 5V via micro USB port
- Dimensions – 65 x 30mm
- Weight – Around 43 grams
The board works out of the box with the Arduino IDE for Windows, macOS, and Linux. Last time around, I could not find any documentation, but a website has now been launched with more technical details and the resources to get started including the pinout diagram.
There are also a few options and add-ons on the GroupGets page including a 2.54mm pitch 2×20 dual male header ($2.95), and the ATMegaZero Protoboard ($4.95) that’s basically a breadboard that can be plugged on top of the board via the 40-pin GPIO header. Note if you need WiFi, you’ll need to purchase ESP-01 or ESP-01s module separately for a little over $1 shipped.