kicad_homeatic_minimal

Homematic minimal PCB

A minimal PCB to build hardware devices for Homematic / BidCoS networks.

PINs (A0x - D0x, GND, 3v3) are compatible to 2.54mm prototype perfboards.

Upload is possible via Serial (FTDI,etc) and ISP (J3).

BOM

• Case: RND 455-00192 https://www.reichelt.de/polycarbonate-box-w-clear-lid-rnd-455-00192-p193406.html

• ATmega328P-AU http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7810-Automotive-Microcontrollers-ATmega328P_Datasheet.pdf https://www.reichelt.de/atmega-avr-risc-controller-tqfp-32-atmega-328p-au-p119684.html

• Switch: RND 210-00204 https://www.reichelt.de/pcb-tactile-switches-rnd-210-00204-p226425.html

• C 0805: 22 pF, 100pF https://www.reichelt.de/mlcc-0805-22-pf-200-v-5-rnd-1500805n2203-p226114.html

• LED 0805 https://www.reichelt.de/led-smd-0805-green-7-1-mcd-160-oso-lgr971-p231718.html

  • R 0805: 330 Ohm, 1k Ohm, etc

  • CC1101 module from ebay