I made this because i need to use some miracle fertilizer(liquid) from 2 bottles to grow my plants. This must be put in the aquarium at 6:00Am, and only a preset amount of ml (in my case only 4ml for 180L aquarium).
Also on the market the liquid dispensers for aquariums are very expensive, and the cheap ones are not reliable.
I just made this version 1 of the Syringe dispencer, that I will make two pieces controlled by arduino.
Included you have everything :
Autodesk inventor sketches
Arduno source code for being used with 1 button and one serial LCD (using only 1 wire (TX) ).
You need aprox ~17mm diameter Syringe.
Made in Autodesk invetor using the source provided.
Printed with reprap 3d own 3d printer
assembles and program wrote in Arduino 1.05, for my arduino uno, and used a Servo HS-85BB from Hitec.