Shared Projects by KC8UFV

Board sends an on/off command based on a switched pin turning on or off. The 3 pin headers are for the power interface - 1 (closest to edge) is the hot, 2 is the switched hot, and 3 is the neutral. This is based on the Microchip AN236 App Note, but using an ATMEGA328P for the main chip due to easier programming enviroment. The DIP switches set the house code and unit address. Code, schematics, and layout available on Github. https://github.com/kc8ufv/X10-Sender

Board sends an on/off command based on a switched pin turning on or off. The 3 pin headers are for the power interface - 1 (closest to edge) is the hot, 2 is the switched hot, and 3 is the neutral. This is based on the Microchip AN236 App Note, but using an ATMEGA328P for the main chip due to easier programming enviroment. The DIP switches set the house code and unit address. Code forthcoming……

PL decoder board based on the MX COM MX165CLH. Pins 1-4 operate as follows: Pin 1 - 8-16V+, 2 - RX Audio, 3 - PL Decode (Active low), 4 - Ground. IC1 is a 5V regulator. A 1MHz crystal oscillator is used, and must be stable to at least 100ppm. Solder bridge pads D0-D5 select the PL to be decoded. See chart in MX165 datasheet. C1-C3 are .1uF to 1uF capacitors. The diode is a standard signal diode. The two thru hole resistors are 560k and 820k. The pads on the right side of the board are for an indicator LED and dropping resistor. Calculate your resistor based on the LED you choose.

Board to split out the signals on the DB-25 connector. Power is a standard power connector. The ENA ports are standard 3.5mm connectors. ENA 1 defaults to enabled if nothing is plugged in, ENA 2 and 3 default to disabled when nothing is connected. This is a companion to the DB9 conversion boards here: https://oshpark.com/shared_projects/xm12x143

These are small adapter boards to adapt the pinout of the RLS-1000B to the pinout of the RLC-Club. The RLS-1000B only directly supports logic high PL mode. This includes a small logic inverter to accept logic low signals, and also allows for the COR and PL signals to be tied together for receivers where they are already tied together. For a combined logic low COR and PL system, jumper pins 2-4 and 5-6. The 4 pin header is a provision for the connection of an external PL decoder board, signals as labeled. The companion breakout for the DB25 is here: https://oshpark.com/shared_projects/YJuL8J8m