16-pin Expander Shield for D1 Mini

Name: 16-pin Expander Shield for D1 Mini
SKU: 16543
Price: 5.00 USD
Availability: OutOfStock
Rating: 4.75 (1 reviews)

(1 Review)

A pin expander shield for the D1 Mini ESP8266 boards

Designed by Radomir Dopieralski in Switzerland

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$5.00

On A Break

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.

A pin expander shield for the D1 Mini ESP8266 boards

What is it? It's a shield with an MCP23017 pin expander on it. It connects to your board through the I2C bus, and lets you have additional 16 digital pins. The address selection jumpers let you stack…

What is it?

It's a shield with an MCP23017 pin expander on it. It connects to your board through the I2C bus, and lets you have additional 16 digital pins. The address selection jumpers let you stack up to 8 such shields at once, for a total of 128 extra pins!

Why did you make it?

The ESP8266 is a very nice chip, and I especially like the D1 Mini development boards, however, they always have too few digital pins to do anything more advanced. This shield makes it very easy to expand the capabilities of this little board.

What makes it special?

It's small, it stacks, it fits the D1 Mini and any compatible board, and it's very convenient to use.

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Radomir Dopieralski Shipping Policy:

Since most products in my store cost less than proper shipping, I'm sending them in regular letters by default: there is no tracking, and it can take several weeks for it to arrive. If un-tracked packages are known to mysteriously disappear in your country, or if you are in a hurry, please select the option with tracking — it will be sent as a registered letter then.

Review Breakdown

Average Ratings

Product: (5.00)

Documentation: (5.00)

Shipping: (4.00)

Communication: (5.00)

Nicolai | May 6, 2019

Good Seller with amazing support.

I bought one of the 16 pin Expander Shields for a Project of mine, because the amazin D1 Mini sadly ran out of pins for me to use.
When I stumbled upon this board, I immediately ordered one to test. Shipping did take a while to germany, but it was a busy time with a few public holidays in between, so that's ok.
When I asked a Question about the board I got an answer pretty quick, that helped me immense, and even with my own stupidity, asking some stupid questions, I always got nice answers. When I finally found out, that one pin of the board was not functional, I was offered a replacement immediately.
All in all, I can definitely recommond this product and seller, as I tested out the functioning pins and everything works great. The Shield looks good on the D1 Mini and gives you a lot of pins for your projects.

$5.00