Board Specifications

Core Specs
CPU RISC-V RV32IM @ 72 MHz
4K I-Cache, 4K D-Cache

RAM 32 MB SDRAM

Storage 4 MB Flash (YAFF2),
microSD slot (FAT32)

Display 320 x 480 16-bit LCD Display
w/ Resistive Touch

Onboard Bluetooth LE
USB Serial Port
Realtime Clock+
Li-ion 3.7v Battery Management

Power 2.9v - 6v; 0.5W @ 5v

Size 10 x 6.5 x 0.8 cm

Features OTA Field Upgradeable via both, UART and BLE
Stock RISC-V foundation GCC 9.2.0 toolchain
C, C++, SCM Scheme, CAML-Light,
microPython+, Python+
LVGL.io, GMP, GSL, PRCE2,
FreeType, Cairo, Expat, ncurses, ...


Peripherals

Peripheral Count Connection
UART 3 1. USB Serial Port
2. BLE Rx/Tx
3. Available

SPI 5 1. Flash
2. microSD Slot
3. LCD Display
4. Touch controller
5. Available

I2C 2 1. Available
2. Available

GPIO 19 GPIO*: 9
GPI*: 1 (BTN) + 5 (CLK IN)
GPO: 1 (LED) + 3 (PWM)

*All input pins support
individual level interrupt
triggers.


Pin-out, Switches and Buttons


Downloads


Documentation


Support


Gallery