@@ -25,9 +25,6 @@ Since we have a limited $150 budget, all of our purchases will most likely be li
-[USB-to-UART Bridge](http://esp32.net/usb-uart/): We need to make use of this bridge and attach it to our ESP-32.
**Power Supply**
- LiPo battery
- 18650 batteries are probably the better choice over choosing a LiPo pack when it comes to the price-to-capacity ratio. However, the ease and form factor of LiPo batteries are more suitable for our design since it's easier to tuck and keep hidden away.
-[AP2112 Voltage Regulator](https://www.digikey.com/en/products/detail/diodes-incorporated/AP2112M-3-3TRG1/5305555)(3.3V)
- The ESP32 series of SoCs all use 3.3 volts as their operating voltage. Since all USB types generally operating at or above 5 volts, we need to drop the voltage down. The AP2112 is a tried and true voltage regulator for 3.3 volts, so we'll use it in our design, too.
- It's very important to keep the battery from overcharging. This battery charge controller appears to be very popular with other boards that are based on ESP32.
- LiPo battery: safe, effective, efficient, and cheap. Moreover, the "ease and form factor" of LiPo batteries are a plus.
-[AP2112 Voltage Regulator](https://www.digikey.com/en/products/detail/diodes-incorporated/AP2112M-3-3TRG1/5305555)(3.3V): The ESP32 series of SoCs all use 3.3 volts as their operating voltage. Since all USB types generally operating at or above 5 volts, we need to drop the voltage down. 3.3 V is a very common voltage for these sort of scenarios
-[MCP73831T Battery Charge Controller](https://www.digikey.com/en/products/detail/microchip-technology/MCP73831T-2DCI-OT/1979804): mainly used to prevent overcharging
