Key facts
- Manuals
- 1
- Languages
- ZH
- Last added
- 2012-02-28
Featured JMY680S manuals

Jinmu Shi JMY-680S RFID Reader User Manual
The JMY-680S is a compact RFID reader module that uses Philips non‑contact technology to read Mifare cards. It includes an automatic card‑search function, a 512‑byte EEPROM for data storage, and supports both UART and I²C communication interfaces.
The manual describes the communication protocols (UART, I²C, Wiegand), command formats, and provides example command sequences for reading, writing, and managing cards. It also lists the supported card types and interface voltage levels (TTL or RS‑232). This manual is written in Chinese.
Covers: Module Overview · UART Communication Protocol · I²C Communication Protocol · Wiegand Format · Command List · Command Examples
Latest JMY680S manuals
Jinmu Shi JMY-680S RFID Reader User Manual
User Manual 8 pages · 167 KB · ZHUser manual for the JMY-680S RFID reader module, covering interfaces, commands, and specifications.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in JMY680S manuals
What is the size of the EEPROM in the JMY-680S module?
The module includes a 512‑byte EEPROM for storing application data.
How can I determine if a card is present in the antenna area?
Check the level of the ICC pin; a change indicates that a card is within the antenna area.
