Pepper C1 MUX RS232

The Pepper C1 MUX module is the multiplexed version of the Pepper C1 – the first Eccel Technology Ltd product with wireless connectivity capabilities (with Wi-Fi interaction now and Bluetooth support coming soon). The user can connect up to 8 external RFID antennas. Thanks to the wireless connectivity, the customer receives free lifetime Over-the-Air updates, and of course the communication protocol can be used over TCP instead of the traditional UART/USB interface. Combining these features with standalone mode provides a “straight out of the box” ready to use device for many application. In standalone mode, the module can also send a tag UID over MQTT or WebSockets, making it easy to integrate with IoT systems.


52 in stock (can be backordered)

The Pepper C1 MUX RS232 is a very powerful, wireless (Wi-Fi now with Bluetooth to follow soon) and low cost full RFID/NFC read/write device with RS232 interface that can operate in both host connected and stand alone mode. Supported RF Protocols:

  • R/W support for MIFARE® Classic® in 1K, 4K memory
  • ISO/IEC 15693 reader (ICODE)
  • R/W support MIFARE Ultralight®, MIFARE DESFire® EV1/EV2, MIFARE Plus® cards
  • CRYPTO in HW for R/W of MIFARE product-based cards
The Pepper C1 MUX is equipped with eight sockets for external antennas, an LED for tag in the field indication/ interrupt, mounting holes and flexible plated connection holes.
The Pepper C1 MUX is an ideal choice if the user wishes to add RFID capability to their design quickly and easily. This device enables high performance RFID solutions to be devloped without the requirement of any RFID expert knowledge on the part of the User.
Eccel Technology Ltd provides a variety of RFID antennas which the user can use together with this device.
Supply voltage range: 3.3 – 5.5 V

Interfaces and features:

  • USB interface
  • Wi-Fi – build in WEB interface to configure protocols, pooling mode etc. Module can operate as WiFi client and Access point
  • Simple binary protocol for all commands available via RS232/UART and network protocols like TCP sockets, WebSocets
  • MQTT client – module can be connected to MQTT server and send messages with UID, type in JSON format.
  • Bluetooth LE ready – hardware supports Bluetooth and this interfaces will be available in the feature
  • OTA Updates – all new features or user suggestions will be available for free thanks to Over The Air updates. Free firmware upgrades by connection to the download section on our website will be available for life on product.





MQTT, RS232, RS485, TCP, UART 3V3, USB, WebSockets, Wi-Fi

RFID Tag Standard

ICODE SLI®, ICODE®, MIFARE Classic® 1K, MIFARE Classic® 4K, MIFARE Classic® Mini, MIFARE Ultralight®, MIFARE® DESFire®





C1 Tool v1.0 C1-tool – the simple command line tool, contains the protocol implementation and examples for:
– MIFARE® Classic® commands
– MIFARE Ultralight® commands
– MIFARE DESfire® commands
– ICODE commands
– network configuration commands
STEP file


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