Hikikomori-base-esp32c6-dev-v0.1

This PCB is a functional add-on for the basic display board from waveshare https://www.waveshare.com/esp32-c6-lcd-1.47.htm.

The PCB includes a 180mA Li-ion battery charge controller and battery protection circuitry. The board also includes a real time clock and a backup AG0 battery.  

Core:

**ESP32-C6-LCD-1.47** is a microcontroller development board with 2.4GHz Wi-Fi 6 and Bluetooth BLE 5 support, integrates 4MB Flash. Onboard 1.47inch LCD screen can smoothly run GUI programs such as LVGL. Combined with various peripheral interfaces, suitable for the quick development of the HMI and other ESP32-C6 applications.

- Equipped with a high-performance 32-bit RISC-V processor with clock speed up to 160 MHz, and a low-power 32-bit RISC-V processor with clock speed up to 20MHz

- Supports 2.4GHz Wi-Fi 6 (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna

- Built in 320KB ROM, 512KB of HP SRAM, 16KB LP SRAM and 4MB Flash memory

- Onboard 1.47inch LCD display, 172×320 resolution, 262K color

- Adapting multiple IO interfaces, integrates full-speed USB port

- Onboard TF card slot for external TF card storage of pictures or files

- Supports accurate control such as flexible clock and multiple power modes to realize low power consumption in different scenarios

- Built-in RGB LED with clear acrylic sandwich panel for cool lighting effect

**BATTERY LEVEL GAUGE BQ27441-G1**

FEATURES

- Single Series Cell Li-Ion Battery Fuel Gauge

    - Resides on System Board

    - Supports Embedded or Removable Batteries

    - Powered Directly from Battery with Integrated LDO

    - Supports a Low-Value External Sense Resistor  

        (10 mΩ)

- Battery Fuel Gauging Based on Patented Impedance  

    Track™ Technology

    - Reports Remaining Capacity and State-of-Charge  

        (SOC) with Smoothing Filter

    - Automatically Adjusts for Battery Aging, =  

        Self-discharge, Temperature, and Rate Changes

    - Battery State-of-Health (Aging) Estimation

- Microcontroller Peripheral Supports:

    - 400-kHz I2C Serial Interface

    - Configurable SOC Interrupt or Battery  

        Low Digital Output Warning

    - Internal Temperature Sensor or  

        Host-Reported Temperature

**Low-Power I2C Temperature sensor MAX31875**  

FEATURES

- Excellent Temperature Accuracy  

    ±1.75°C from -40°C to +145°C  

    ±1°C from -0°C to +70°C

- <10µA Average Power Supply Current

- Selectable Timeout Prevents Bus Lockup (Default Enabled)

- I2C and SMBus Support

- Selectable PEC for Reliable Communications

- Up to 1MHz Bus Speed

- +1.6V to +3.6V Power Supply Voltage  

    MAX31875 necessary code libraries to work with  

**RV-3032-C7 Real-Time Clock Module with I2C-Bus**  

FEATURES  

Ultra low power consumption: 160 nA @ 3 V  

Wide operating voltage range: 1.3 V to 5.5 V  

Time accuracy: -40°C to +85°C, ±2.5 ppm  +85°C to +105°C, ±20.0 ppm  

Readable 12-bit Temperature Sensor with interrupt function  

User programmable Password for write protection  

Automatic Backup Switchover  

Trickle Charger with Charge Pump  

Timer, Alarm and External Event functions  

Clock output frequencies: 1 Hz to 52 MHz  

I2C-bus interface: 400 kHz  

100% Pb-free, RoHS-compliant  

Automotive qualification according to AEC-Q200 available  

RV-3032-C7 necessary code libraries to work with