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JetHome Zigbee module ZB3CX v.1 (CC2538+CC2592)

Module based on TI CC2538-CC2592EM-RD reference design using TI CC2538 wireless microcontroller

The module is designed to work as part of automation devices (controllers, end devices) and, depending on the software installed on the module, can perform various functions.

Supported protocols:

  • Zigbee;
  • 6LoWPAN.

Distinctive features of the module - the ability to connect via USB interface and increased transmitter power.


  • Microcontroller ARM® Cortex®-M3 32 MHz;
  • RAM 32 KB;
  • Flash 512 KB;
  • Additional output power amplifier CC2592 +22dBm;
  • Supply voltage +3.3V;
  • USB interface for connecting a module with +5V power supply;
  • Overall dimensions of the module: 28 x 18 mm.

Module Pin Assignment

The module is made in the format of a unified JetHome wireless module 28 x 18 mm in size with contacts located along the perimeter of the module.

Module pin assignment (top view):

Module Output Purpose / output of the microcontroller
5 PB4
6 PB3
7 PB2
eight PB1
nine GND
ten USB D+
eleven USB D-
12 +5V
thirteen +3.3V
fourteen GND
fifteen RESET
sixteen PA0(RX)
17 PA1(TX)
eighteen PD0(CTS)
nineteen PD1(RTS)
20 PA7
21 GND
23 GND
  • Pin 20 (PA7) - used to enter bootloader mode (depends on software)
  • Pins 5..8 (PB1..PB4) - depending on the software, they can be used to connect LEDs or for other purposes.

module software

For information on supported firmware, see the documentation: Software for modules based on the TI CC2538 chip

Module firmware procedure

The cc2538-bsl utility can be used to flash the module (see Flashing TI CC2538/CC2652 Modules and Sticks Using the cc2538-bsl Utility )

Before flashing, the module must be switched to bootloader mode (serial bootloader). To do this, you need to reset the module by holding a low logic level at the input PA7 of the microcontroller (pin 20 of the module). The module is switched back to the operating mode when the module is turned on/rebooted at a high logic level at pin PA7 (pin 20 of the module).

This is true only for the firmware recommended for installation (see the "Module software" section).