{"product_id":"high-precision-adda-expansion-board-for-raspberry-pi","title":"High-Precision AD\/DA Expansion Board for Raspberry Pi","description":"\u003cp\u003e\u003cspan\u003eThere's no Analog-to-Digital\/Digital-to-Analog (AD\/DA) function on the Raspberry Pi GPIO interface, which can restrict the use of certain components in your project. This \u003cstrong\u003eHigh-Precision\u003c\/strong\u003e AD\/DA Board allows you to add high-precision AD\/DA functions to your Raspberry Pi!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: Sensors pictured but not included!\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStandard Raspberry Pi 40-pin GPIO extension header\u003c\/li\u003e\n\u003cli\u003eOnboard ADS1256, 8-channel 24-bit high-precision \u003cstrong\u003eADC\u003c\/strong\u003e (4ch differential input), 30ksps sampling rate\u003c\/li\u003e\n\u003cli\u003eOnboard DAC8552, 2-ch 16-bit high-precision \u003cstrong\u003eDAC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOnboard input interface via pin headers, for connecting analogue signal\n\u003cul\u003e\n\u003cli\u003ethe pinout is compatible with Waveshare sensor interface standard, easy to connect various analogue sensor modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eOnboard input\/output interface via screw terminals, for connecting analogue\/digital signal\u003c\/li\u003e\n\u003cli\u003eFeatures AD\/DA detect circuit, easy for signal demonstration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Wiki and guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's onboard?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/raspberry-pi-high-precision-ad-da-6.jpg?v=1599240640\u0026amp;width=700\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRaspberry Pi GPIO interface: for connecting with the Pi\u003c\/li\u003e\n\u003cli\u003eAD\/DA input\/output : screw terminals\u003c\/li\u003e\n\u003cli\u003eAD input: pin headers, the pinout is compatible with Waveshare sensor interface standard, easy to connect various analogue sensor modules\u003c\/li\u003e\n\u003cli\u003e7.68M crystal\u003c\/li\u003e\n\u003cli\u003eLM285-2.5: provides the reference voltage for the ADC chip\u003c\/li\u003e\n\u003cli\u003ePhotoresistor\u003c\/li\u003e\n\u003cli\u003eLED output indicator\u003c\/li\u003e\n\u003cli\u003e10K potentiometer\u003c\/li\u003e\n\u003cli\u003eDAC8552 : 16bit high-precision DAC, 2ch\u003c\/li\u003e\n\u003cli\u003ePower indicator\u003c\/li\u003e\n\u003cli\u003eADS1256 : 24bit high-precision ADC, 8ch (4ch differential input)\u003c\/li\u003e\n\u003cli\u003eADC testing jumper\u003c\/li\u003e\n\u003cli\u003eDAC testing jumper\u003c\/li\u003e\n\u003cli\u003ePower selection jumper\u003c\/li\u003e\n\u003cli\u003eADC reference ground configuration: when AD single inputted, the AINCOM is reference terminal, can be connected to GND or external reference voltage\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eInterface\u003c\/h2\u003e\n\u003ctable class=\"tabSty-1\" border=\"1\" style=\"width: 534px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 187px;\"\u003ePIN\u003c\/th\u003e\n\u003cth style=\"width: 126px;\"\u003eSYMBOL\u003c\/th\u003e\n\u003cth style=\"width: 199px;\"\u003eDESCRIPTION\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e1, 17\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003e3.3V\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003ePower supply (3.3V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e2, 4\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003e5V\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003ePower supply (5V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e3, 5, 7, 8, 10, 18, 22, 24, 26, 27, 28, 29, 32, 36, 38, 40\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eNC\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e6, 9, 14, 20, 25, 30, 34, 39\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eGND\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eGround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e11\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eDRDY\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eADS1256 data ready output, low active\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e12\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eRESET\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eADS1256 reset input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e13\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003ePDWN\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eADS1256 sync\/power off input, low active\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e15\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eCS0\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eADS1256 chip select, low active\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e16\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eCS1\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eDAC8552 chip select, low active\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e19\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eDIN\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eSPI data input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e21\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eDOUT\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eSPI data output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e23\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eSCK\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eSPI clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 187px;\"\u003e31, 33, 35, 37\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\"\u003eGPIO\u003c\/td\u003e\n\u003ctd style=\"width: 199px;\"\u003eextend to sensor interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":52217434669344,"sku":"uea1787257968391","price":23.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/3231\/3120\/files\/high-precision-adda-expansion-board-for-raspberry-pi_1.jpg?v=1787257973","url":"https:\/\/www.elmwoodbasket.shop\/products\/high-precision-adda-expansion-board-for-raspberry-pi","provider":"My Store","version":"1.0","type":"link"}