Joel's Projects >> fpga_fan_controller

Link to this comparison view

--- fpga_fan_controller [2016/08/25 19:18]
joel
+++ fpga_fan_controller [2017/12/06 11:18]
@@ Line 1: / Line 1: @@
-====== FPGA Fan Controller ======
-My Ceiling fan is controlled by a [[https://www.amazon.com/Hunter-27185-Light-Remote-Control/dp/B00002NC0D|Hunter Fan Co 27185]] remote control, which transmits with [[https://en.wikipedia.org/wiki/On-off_keying|OOK]] (On-off keying) at 350MHz.
-{{:hunter_fan:20160612-ceiling-fan.jpg?0x250|}}
-{{:hunter_fan:20160612-controller-front.jpg?0x250|}}
-{{:hunter_fan:20160612-controller-back.jpg?0x250|}}
-Internally the device uses a [[http://www.futurlec.com/Datasheet/Others/HT12E.pdf|HT12E]] encoder chip driving a 350MHz LC oscillator.
-===== Capture =====
-==== Gqrx ====
-I used my RTLSDR and [[http://gqrx.dk/|Gqrx]] to capture packets from the the remote.
-{{:hunter_fan:20160618-gqrx-capture.jpg?0x500|}}
-==== Inspectrum ====
-{{:hunter_fan:20160612-inspectrum.jpg?500x|}}
-==== GNU Radio ====
-{{:hunter_fan:20160612-envelope-detector.png?750x|}}
-{{:hunter_fan:20160612-threshold.png?0x350|}}
-{{:hunter_fan:pwm-modulation.png|}}
-===== iCE40 FPGA Implementation =====
-{{:hunter_fan:20160612-ice40hx8k-board.jpg?0x250}}
-{{:hunter_fan:fpga-structure.png?0x250|}}
-{{:hunter_fan:20160612-transmit-signal.png?0x250|}}
-{{:hunter_fan:20160618-completed-unit.jpg?0x250|}}