Toki is a development board developed by Yudu Robotics, based on a 32-bit RISC-V microcontroller operating at 64 MHz with Bluetooth Low Energy (BLE) for wireless programming. It provides 24 GPIO pins, a 12-bit ADC, 512 KB FlashROM, 26 KB SRAM, and an H-bridge motor driver, with programming supported via the PLODE environment. The board is intended for use in robotics, automation, and embedded systems, and is comparable to platforms such as Arduino and Micro:bit.
Processor – RISC-V Architecture
Toki uses a 32-bit RISC-V microcontroller running at 64 MHz. RISC-V is an open-source instruction set architecture (ISA) that differs from AVR and ARM Cortex-M architectures by providing an open and customizable instruction set. As a development board, Toki allows modifications for research and specialized applications.
Memory & Storage
- 512 KB Flash ROM – Stores program code.
- 26 KB SRAM – Handles runtime operations.
- Endurance – Flash memory rated for 1 million write/erase cycles.
Connectivity & Interfaces
Toki includes a range of I/O and communication options:
- Wireless Communication – Built-in Bluetooth Low Energy (BLE) for wireless programming and remote control.
- I/O Ports – 24 GPIO pins, of which 18 are available for general use, supporting analog, digital, and PWM signals.
- Analog Inputs – 12-bit ADC with 12 channels for precise sensor readings.
- NEC Communication Protocols – Supports SPI, I2C, and  UART
Power System
- Power Inputs – USB-C (5V) or onboard AA battery holder (4.5V).
- H-Bridge Motor Driver – Drives two motors (M1, M2) with a maximum output of 2.1A per channel.
- FET Outputs – Two high-current outputs (2A max) for inductive loads.
