> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Coin Acceptor - Programmable 1 Coin Type

**Type:** Product page · **SKU:** ADA786 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/coin-acceptor-programmable-1-coin-type.html ([markdown](https://core-electronics.com.au/coin-acceptor-programmable-1-coin-type.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

Your project may be free-as-in-speech, but that doesn't mean it has to be free-as-in-beer. This handy coin validator/acceptor module is just like the ones you've seen in arcades. First, program it with what coin you want it to accept, any coin from 10.8mm to 25.1mm in diameter can be used so you can use American, European, Japanese, Canadian, etc. coins as long as they fit. When a valid coin is inserted, the output line will pulse for 20-60ms (configurable). The acceptor looks for diameter, thickness, dropping speed, etc to determine if a coin is valid. You can select 3 different "strictness" levels.
 
 Comes with the acceptor itself, mounting hardware, and a cable for power/signal. The coin falls through, you choose how and where to store them.
 
 To program the validator: power with 12VDC (power wire goes to +12VDC, ground wire to common ground). Press and hold the little button on top for 5 seconds and release. The LED will be on. Now insert 30 sample coins of the value you want to detect (say 30 quarters or 30 Euro coins). Once the LED goes out it's programmed! Connect a 10K (1K to 100K is fine) pullup resistor from the COIN wire to your microcontroller's VCC line (for Arduino, this is a +5V). Then connect/'listen' on the COIN wire for pulses. Insert a coin, and verify that the line pulses high for about 40 milliseconds.
 
 
 
 You can download the Electronic Piggy Bank project code from [github](https://github.com/adafruit/Adafruit-Programmable-Piggy-Bank).

## Technical Details

- Power requirements: 12VDC (+- 20%)
- Quiescent current: ~25mA
- Peak current (for solenoid): 400mA
- Accepts coins from 10.8mm to 25.1mm in diameter, 1.2mm to 3.0mm thick. Does not work with coins that have holes in them
- Programmable for a single coin

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/7/8/786-00.jpg)