> **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 # Raspberry Pi High-Precision AD/DA Board (Seeed Studio) **Type:** Product page · **SKU:** SS114990831 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia) **Page:** https://core-electronics.com.au/raspberry-pi-high-precision-ad-da-board-seeed-studio.html ([markdown](https://core-electronics.com.au/raspberry-pi-high-precision-ad-da-board-seeed-studio.html.md)) There's no AD/DA function on the Raspberry Pi GPIO interface, this may trouble you in the Pi development. However, it won't be a problem anymore. The High-Precision... ## Pricing - **Price:** $104.95 (inc GST) — $95.41 AUD, exc GST - **Quantity discounts:** 5+ $91.59 (exc GST) · 10+ $88.73 (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=SS114990831:1` (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/SS114990831:1.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 ![??.jpg](https://core-electronics.com.au/attachments/localcontent/1479975037128121_20999ae3fb5.jpg) There's no AD/DA function on the Raspberry Pi GPIO interface, this may trouble you in the Pi development. However, it won't be a problem anymore. The High-Precision AD/DA Board allows you to add high-precision AD/DA functions to the Raspberry Pi. ![??2.jpg](https://core-electronics.com.au/attachments/localcontent/1479975047754541_1173193406b.jpg) Raspberry Pi 1 Model A+ Raspberry Pi 1 Model B+ Raspberry Pi 2 Model B Raspberry Pi 3 Model B ![??3.jpg](https://core-electronics.com.au/attachments/localcontent/1479975067266453_9144480973.jpg) - Onboard ADS1256, 8ch 24bit high-precision ADC (4ch differential input), 30ksps sampling rate - Onboard DAC8532, 2ch 16bit high-precision DAC - Onboard input interface via pinheaders, for connecting analog signal, the pinout is compatible with Waveshare sensor interface standard, easy to connect various analog sensor modules - Onboard input/output interface via screw terminals, for connecting analog/digital signal - Features AD/DA detect circuit, easy for signal demonstration ![??4.jpg](https://core-electronics.com.au/attachments/localcontent/1479975151121642_10702e37492.jpg) ![High-Precision-AD-DA-Board-intro.jpg](https://core-electronics.com.au/attachments/localcontent/1479975193839819_4465736965f.jpg) 1.**Raspberry Pi GPIO interface:** for connecting with the Pi 2.**AD/DA input/output:** screw terminals 3.**AD input:** pinheaders, the pinout is compatible with Waveshare sensor interface standard, easy to connect various analog sensor modules 4.**7.68M crystal** 5.**LM285-2.5:** provides reference voltage for the ADC chip 6.**Photo resistor** 7.**LED output indicator** 8.**10K potentiometer** 9.**DAC8532:** 16bit high-precision DAC, 2ch 10.**Power indicator** 11.**ADS1256:** 24bit high-precision ADC, 8ch (4ch differential input) 12.**ADC testing jumper** 13.**DAC testing jumper** 14.**Power selection jumper** 15.**ADC reference ground configuration:** when AD single inputted, the AINCOM is reference terminal, can be connected to GND or external reference voltage **![??12.jpg](https://core-electronics.com.au/attachments/localcontent/1479975748931456_11497b1c37d.jpg)** | Symbol | Pin | Description | |---|---|---| | 3.3V | 1, 17 | Power supply (3.3V) | | 5V | 2, 4 | Power supply (5V) | | NC | 3, 5, 7, 8, 10, 18, 22, 24, 26, 27, 28, 29, 32, 36, 38, 40 | NC | | GND | 6, 9, 14, 20, 25, 30, 34, 39 | Ground | | DRDY | 11 | ADS1256 data ready output, low active | | RESET | 12 | ADS1256 reset input | | PDWN | 13 | ADS1256 sync/power off input, low active | | CS0 | 15 | ADS1256 chip select, low active | | CS1 | 16 | DAC8532 chip select, low active | | DIN | 19 | SPI data input | | DOUT | 21 | SPI data output | | SCK | 23 | SPI clock | | GPIO | 31, 33, 35, 37 | extend to sensor interface | ![dimensions.jpg](https://core-electronics.com.au/attachments/localcontent/1479978905300082_8811c2be63.jpg) ![High-Precision-AD-DA-Board-size.jpg](https://core-electronics.com.au/attachments/localcontent/1479978924633535_2751216c6b8.jpg) ![partlist.jpg](https://core-electronics.com.au/attachments/localcontent/1479978937933397_77243e13d8.jpg) Raspberry Pi High-Precision AD/DA Board\*1 ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/b/z/bz3qwd0oisc3l1wadwuj9ywm.jpg)