**Revised version of my 759 crossing controller** This is a controller board to make the AmericanFlyer 759/761 Danger bells do a wig-wag style of flashing and dinging. It will also control a crossing gate at the same time. **Note:** The output is AC for incadedscent lamps. It is not intended to operate LED style accessories without suitable dropping resistors. This is a heavily revised version that allows you to use a 696 track trip to activate it or an Infra Red sensor. I also added an ICSP connector to allow programming the Atmega 328 chip without removing it from the board. It also has provisions for adding a small sound card (DY-SV8F) for bell sounds if you do not have an accessory with a bell. These are available on eBay for about $4. There is a header with a jumper block that allows you to select either the 796 track trip or a common IR sensor board that outputs a signal when something passes in front of it. These IR sensors are commonly available on eBay for a dollar or two. Search for "IR Infrared Obstacle Avoidance Sensor Module For Arduino" These can be mounted between the rails or better yet, in a section of rubber roadbed. You can use the 696 or the IR board but not at the same time. You have to set a jumper to select which one. **Note:** the connections on the 10 pins are different from the original version. Pin 1= 18VAC, Pins 2345=Base Post. Pin 6=Input from 696 or IR board, Pin 7=Crossing Gate, Pin8 =Bell, Pins 9,10=flashing lights.