Texas Instruments CC2500 Low-Power 2.4 GHz RF Transceiver component for ESPHome.

Introduction

This CC2500 component for ESPHome controls the CC2500 transeiver for sending and receiving data using a compatible receiver. Other components that depend on the CC2500 component can reference it.

To set up this CC2500 component you first need to place a top-level SPI component which defines the pins to use.

Hardware required:

• ESP8266, ESP32 or other ESPHome supported microcontroller
• CC2500 transceiver

Wiring:

CC2500	ESP8266
GND	G
VDD	3V
SI	D7/GPIO13
SCLK	D5/GPIO14
SO	D6/GPIO12
GDO2	D1/GPIO5
GDO0
CSn	D8/GPIO15

Configuration variables:

• cs_pin (Required): The pin to use for the chip select of the SPI bus.
• gdo2_pin (Optional): The ESP pin the CC2500 GDO2 pin is connected to.
• output_power (Optional): The output power signals should be transmitted with.

ESPHome example configuration:

esphome:
  name: cc2500

external_components:
  - source: github://rrooggiieerr/esphome-cc2500

esp8266:
  board: nodemcu

# Enable logging
logger:
  level: DEBUG

spi:
  clk_pin: GPIO14
  mosi_pin: GPIO13
  miso_pin: GPIO12

cc2500:
  cs_pin: GPIO15
  gdo2_pin: GPIO5
  output_power: 0xFF

Documentation:

Texas Instruments CC2500 datasheet

Credits:

Tor Røttum's IKEA Ansluta ESPHome component was very helpful for making this component.

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