Pauls72

I added a RED 16x2 LCD display, to which I added the I2C interface board. This changes the LCD display from a whole bunch of wires, down to just 4. RX Data (SCL) - Analogue pin 5 TX Data (SDA) - Analogue pin 4 VCC +5V Ground IR sensor and remote, the sensor uses 3 wires: (The Uno 3 has a header with these 3 pins right in the middle of the board.) Data (MOSI) - Digital pin 11 VCC +5V Ground I am using a Arduino Uno 3 clone. Since I am using a 12V stepper motor and driver board, it needs to be powered off of the 12V connector on the Arduino. I have a Arduino Nano too, but that would require extra work to get the 12V to the motor driver. So that is a future change. Most of the parts where purchased off of ebay from China or Hong Kong, so cost was very minimal. I have a couple of dove tail clamps and I bought some aluminum bar stock to make a mounting bracket. Attached is the modified 2.3.0 sketch. When I get some time I will integrate my changes into the latest 2.5 sketch. AAF2_20161213.zip

Well I ordered the parts and started on this quite awhile ago. Finally got around to finishing it. I went with the 12V 4-phase 5-wire Stepper Motor Gear Motor 28BYJ-48-12V and ULN2003 ULN2003AN Stepper Motor Driver Board. I added a 16x2 LCD I2C display and an IR Remote. So I can run it without the computer and without touching it. I made it so the +/- are one step, the fast forward fast back buttons increment/decrement by 50, the power button halts and you can key in a 4 digit position value and press button that I made the enter. Also made a clear button. The change direction/loop button toggles the display of the temperature between Celsius and Fahrenheit. I was thinking about adding sensors and a flag for the home position and the fully extended positions. This way you would never try and drive past the focuser limits.