> **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 4 Coin Type

**Type:** Product page · **SKU:** ADA787 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/coin-acceptor-programmable-4-coin-type.html ([markdown](https://core-electronics.com.au/coin-acceptor-programmable-4-coin-type.html.md))

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...

## Pricing

- **Price:** $96.60 (inc GST) — $87.82 AUD, exc GST
- **Quantity discounts:** 10+ $85.18 (exc GST) · 50+ $83.43 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA787:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA787:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **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. **This model has the cool ability to accept up to 4 different coins!** For example, you can program it for 4 different Adafruit coins, or European, or Japanese OR you can have it accept 4 coins from different countries - say a Chinese Yuan, Japanese Yen, American Quarter and European Euro. First you'll have to program it with what coins you want it to accept. Any coin from 15mm to 29mm in diameter can be used. Each coin is assigned a number of pulses, so for example, a nickel should be 1 pulse, a dime, 2 pulses, a quarter 5 pulses and a half dollar 10 pulses. 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.  **Note: During testing we found that Aussie 50c coins are large enough to jam in the reject path on occasion, but when accepted work fine, and can be returned by pressing the button on the face of the acceptor.**

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, go through the [instruction sheet](https://core-electronics.com.au/attachments/localcontent/CHmulticoin_4065170c83d.jpg) - you'll need about 20 of each coin to help program the acceptor. After programming, connect a 10K (1K to 100K is fine) pullup resistor from the white wire to your microcontroller's VCC line (for Arduino, this is a +5V). Insert different coins, and verify that the coin line pulses high for about 40 milliseconds the right number of times.

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 15mm to 29mm in diameter, 1.2mm to 3.8mm thick
- Programmable for up to four different coins
- Does not work with coins that have 'holes' in the center! Also may not work with NZ $1 coins (one report)
 
[Instruction sheet](https://core-electronics.com.au/attachments/localcontent/CHmulticoin_4065170c83d.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/7/8/787-00.jpg)