{"product_id":"raspberry-pi-pcf8591-sensor-expansion-board-adc-dac-gpio","title":"Raspberry Pi PCF8591 Sensor Expansion Board ADC DAC GPIO","description":"\n\u003ch2\u003eRaspberry Pi PCF8591 Sensor Expansion Board – ADC\/DAC \u0026amp; GPIO Testing\u003c\/h2\u003e\n\u003cp\u003eTake your Raspberry Pi projects to the next level with this versatile \u003cstrong\u003ePCF8591 Sensor Expansion Board\u003c\/strong\u003e. Designed specifically for the Raspberry Pi 40-PIN GPIO header, this beginner-friendly board slots in directly and exposes every GPIO pin for easy testing and prototyping. Whether you're learning electronics or building your first IoT sensor project, this expansion board has everything you need to get started fast.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e40-PIN GPIO Compatible:\u003c\/strong\u003e Designed for Raspberry Pi 3B, 4B, CM4, and Zero — plugs in directly after soldering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnboard PCF8591 ADDA Chip:\u003c\/strong\u003e Read analog sensor signals as digital data (ADC) and output digital-to-analog signals (DAC) with ease.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull GPIO Pin Breakout:\u003c\/strong\u003e All GPIO function pins are exposed and clearly labeled so you can test each one individually.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOnboard LED Indicators:\u003c\/strong\u003e Visual feedback on pin activity makes debugging and learning intuitive.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Wiring Terminals:\u003c\/strong\u003e Onboard screw terminal blocks with interface definition labels keep wiring neat, secure, and professional-looking.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBeginner Friendly:\u003c\/strong\u003e A straightforward layout with labeled connectors — perfect for students, hobbyists, and makers new to single-board computing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built with metal and plastic components for long-lasting, reliable use on the workbench.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e PCF8591 (ADC\/DAC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e I²C (GPIO)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Boards:\u003c\/strong\u003e Raspberry Pi 3B, 4B, CM4, Zero\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGPIO Header:\u003c\/strong\u003e 40-PIN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal + Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e As shown\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × PCF8591 Sensor Expansion Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Raspberry Pi board is NOT included — please purchase separately. Color may vary slightly from product images due to display settings and lighting. Measurement tolerance: ±1–3 cm.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eLearn More About Single-Board Computing \u0026amp; Electronics\u003c\/h3\u003e\n\u003cp\u003eFor general guidance on electronics safety and consumer product standards, visit the U.S. Consumer Product Safety Commission (CPSC). For technical standards relevant to electronic components, the \u003ca href=\"https:\/\/www.nist.gov\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNational Institute of Standards and Technology (NIST)\u003c\/a\u003e is an excellent resource.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Which Raspberry Pi models is the PCF8591 Sensor Expansion Board compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This expansion board is compatible with the Raspberry Pi 3B, 4B, CM4, and Zero. It uses the standard 40-PIN GPIO header for a direct plug-in connection. Note that the Raspberry Pi board itself is not included and must be purchased separately.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the ADC and DAC functions on this board?\u003c\/h4\u003e\n\u003cp\u003eA: ADC (Analog-to-Digital Conversion) allows the board to read real-world analog sensor signals — such as temperature or light levels — and convert them into digital values your Raspberry Pi can process. DAC (Digital-to-Analog Conversion) does the reverse, outputting an analog signal from your Pi to control external devices. The onboard PCF8591 chip handles both functions via the I²C interface.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this board suitable for beginners with no prior electronics experience?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This expansion board is specifically designed for Raspberry Pi beginners. All GPIO pins are clearly labeled, the board includes onboard LED indicators for easy visual testing, and the industrial screw terminal blocks make wiring straightforward even for newcomers to electronics and single-board computing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the board require any soldering?\u003c\/h4\u003e\n\u003cp\u003eA: The board is designed to be inserted directly onto the Raspberry Pi's 40-PIN GPIO header after welding\/soldering the header pins (if not pre-soldered). Standard hobbyist soldering tools are sufficient. Please check the board condition on arrival before use.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which Raspberry Pi models is the PCF8591 Sensor Expansion Board compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This expansion board is compatible with the Raspberry Pi 3B, 4B, CM4, and Zero. It uses the standard 40-PIN GPIO header for a direct plug-in connection. Note that the Raspberry Pi board itself is not included and must be purchased separately.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the ADC and DAC functions on this board?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"ADC (Analog-to-Digital Conversion) allows the board to read real-world analog sensor signals — such as temperature or light levels — and convert them into digital values your Raspberry Pi can process. 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Please check the board condition on arrival before use.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Raspberry Pi PCF8591 Sensor Expansion Board ADC DAC GPIO\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/raspberry-pi-pcf8591-sensor-expansion-board-adc-dac-gpio\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"As Shown","offer_id":48752700489920,"sku":"14:203008817#As Shown","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/S83bb5808aafc45069ebc240cfb03c1046.webp?v=1786253916","url":"https:\/\/vueselect.com\/products\/raspberry-pi-pcf8591-sensor-expansion-board-adc-dac-gpio","provider":"Vue","version":"1.0","type":"link"}