Tondaj SL-814
The Tondaj SL-814 is a sound level meter with USB connectivity.
Hardware
- Atmel ATmega8/L
- ...
Photos
Protocol
The device has a mini-USB connector for PC connectivity. It ships with a Prolific USB-to-serial cable (i.e. the Prolific chip is inside the cable) which can be attached to that connector.
The device accepts a simple command-based protocol over the (virtual) serial port, using a baudrate of 9600 baud, with 8e1 settings (8 data bits, even parity, one stop bit).
Commands
| Name | Command | Reply | Comments |
|---|---|---|---|
| Init | 0x10 0x04 0x0d | 0x05 0x0d | |
| Get measurement | 0x30 0xZZ 0x0d | 0xAA 0xBB 0xZZ+1 0x0d |