Part III : First Prototype Design
Posted on: January 20, 2018, by : admin
Introduction
The purpose of having first prototype is to bring up basic operational modules as following:
- To validate power charging units towards two-lithium battery 18650 connected in series.
- To validate boost-up dc-dc switching regulator with adjustable digital potentiometer.
- To validate main power trees operate as intended.
- To validate ESP8266 microcontroller unit able to power up and display characters for LCD.
Schematics:
PCB:
Fabricated PCB:
