Web API Tool by Crescent

Japanese/English

This web site is to test I2C devices using a USB Serial I2C Conversion Board and a browser.

BLE serial test tool is BLE5 module conversion board or A tool to test serial communication via a browser with BLE5 module conversion board V2.

USB-SPI conversion board test tool is a tool to test SPI communication with USB-SPI conversion board via a browser.

USB Serial Test Tool is a tool that graphs numbers through a serial port

This page can operate offline or locally.

Only Edge or Chrome browsers are supported.