Analog‑to‑digital converters expand a microcontroller’s ability to read real‑world signals by providing additional analogue inputs and higher resolution than the built‑in hardware. They typically connect via standard serial buses such as I²C or SPI, allowing multiple devices to share the same pins and simplifying wiring. Programmable gain settings let the same module handle a wide range of sensor voltages, while options for screw‑terminal or breadboard‑friendly pins make prototyping quick and reliable. Some converters include on‑board memory to retain calibration data after power loss, and addressable designs enable several units to be stacked on a single bus. These characteristics give projects, from environmental monitoring to precision motor control, a flexible, dependable way to digitise analogue data without redesigning the core board.
Code: SKU-001905
The SparkFun I2C DAC Breakout (MCP4725) provides accurate, 12-bit analogue voltage output via I2C and features onboard EEPROM to store settings even after power loss. More Details...
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Code: SKU-005534
The SparkFun Qwiic 12-Bit ADC (ADS1015) adds four analogue input channels via I2C, featuring screw terminals, programmable gain, and an onboard trimpot for testing. More Details...
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Code: SKU-000214
The MCP3002 has a 10-bit analogue to digital converter (ADC) with a simple to use SPI interface. Use this IC if your microcontroller does not have an ADC or have enough ADC lines. More Details...
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Code: SKU-000399
Atmel's itty-bitty ATtiny85 8-Bit Processor. 8K of program space 6 I/O lines and 4-channel 10 bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit.Documents:Product CardArduino Board Definitions More Details...
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Code: SKU-011024
The SparkFun Qwiic 24-Bit ADC (ADS1219) adds four channels of high-precision, 24-bit analogue input to your project over I2C, featuring programmable gain and up to 16 unique addresses. More Details...
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