20-channel Servo Shield for D1 Mini

Name: 20-channel Servo Shield for D1 Mini
SKU: 8955
Price: 9.00 USD
Availability: Discontinued

Lets you connect up to 20 hobby servos to your D1 Mini, and control their positions over I²C.

Designed by Radomir Dopieralski in Switzerland

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If you need a larger amount of any of my products, or you would like to sell them in your store, please contact me. All my designs are publicly available, and I can help you with the production setup.

Lets you connect up to 20 hobby servos to your D1 Mini, and control their positions over I²C.

What is it? It's a shield that you stack on top or bottom of a WeMos D1 Mini development board, that lets you connect and control up to 20 hobby servos, using a simple I2C protocol. The two address-s…

What is it?

It's a shield that you stack on top or bottom of a WeMos D1 Mini development board, that lets you connect and control up to 20 hobby servos, using a simple I2C protocol. The two address-selection jumpers let you stack up to 4 such shields, allowing you to control a total of 80 servos at once from a single D1 Mini, using only two pins.

Why did you make it?

I needed a servo controller for my hexapod robot. Since it uses three servos for every leg, the total comes up to 18 servos. The existing servo controllers didn't satisfy my needs in terms of number of servos, size or price, so I just programmed an Pro Mini Arduino clone to generate the required PWM signal. Later I improved the code and design, and made it into a shield.

What makes it special?

It fits on the WeMos D1 Mini and D1 Mini Pro boards, and it stacks because it uses angled headers. It controls a lot of servos for its small size, and it uses a very simple protocol for communication.