EN - This is a digital servo tester using a simple Attiny44 chip.
Code can be downloaded from http://bit.ly/2wBhLwt
(Also need software servo library found here https://playground.arduino.cc/ComponentLib/Servo/ and to program from Arduino need these boards https://github.com/SpenceKonde/ATTinyCore/blob/master/Installation.md)
more in this video https://youtu.be/8KIR4aokrsU
ES - Circuito programab...
This board utilize an ATTINY85 chip to control a servo motor using Serial Command, featuring a MOSFET for switching on/off the servo motor, an AMS1117 3.3 regulator to provide power for the ATTINY85chip and a status LED. Program not included. You have to use Software Serial on Port 3 and 4.
Recommend Serial Command: M-Command
This schematic uses two LDRs (Light dependent resistor) to sense the light and a servo motor to automatically rotate the solar panel in the direction of the sun light. The Arduino code is available on [Arduino Solar Tracker using LDR and Servo Motor]