As makers and engineers, we frequently incorporate microcontrollers, single board computers, and external sensors into our projects. This often requires that we interface our digital circuitry to the analog world. But do you really know what’s going on under the hood of that ADC you’re using? In this video, I cover the basics of using an ADC and focus on the successive approximation register ADC. With that knowledge, we put together a DIY temperature probe using an analog temperature sensor, custom enclosure and a novel method of turning the unit on and off.
Bill of Materials
Bill of Materials
| Product Name | Manufacturer | Quantity | Buy Kit |
|---|---|---|---|
| Silicon Labs Busy Bee 8-bit MCU | Silicon labs | 1 | Buy Now |
| RED LED - 0805 | 1 | Buy Now | |
| Omron - 120 Ohm 0603 Resistors | Omron | 9 | Buy Now |
| Vishay - 10k Ohm 0603 Resistor | Vishay | Buy Now | |
| Samsung - 4.7uF/25V 0603 MLCC | Samsung | Buy Now | |
| AXV - 0.1uF/50V 0603 MLCC | AXV | Buy Now | |
| Microchip - MCP9700 Analog Thermistor | Microchip | Buy Now |
Additional Parts:
| Product Name |
|---|
|
Custom Enclosure |
|
Custom Lexan Window |
|
3-digit 7-segment bubble display |
|
(qty 2) CR2032 Coin Cells |
Get to Know Your ADC with a DIY Temperature Probe
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