Hw-044 Datasheet ((free)) -

Connects to any 5V USB power source (computer, wall adapter, power bank).

transceiver IC, which allows it to handle bidirectional data conversion while supporting a wide range of logic levels. Key Specifications hw-044 datasheet

int deadzone = 20; // ADC counts int maxSpeed = 255; Connects to any 5V USB power source (computer,

| DB9 Pin | Signal | Description | | :--- | :--- | :--- | | 2 | | Receive Data (Input to module) | | 3 | TXD | Transmit Data (Output from module) | | 5 | GND | Ground | When a battery is deeply discharged, the chip

The TP4056 handles the charging algorithm. When a battery is deeply discharged, the chip initiates a pre-charge (trickle charge) phase. Once the battery reaches a safe threshold, the chip transitions into constant-current (CC) mode, supplying the maximum configured current. As the battery approaches 4.2V, the chip switches to constant-voltage (CV) mode, gradually dropping the current until the battery is completely topped off. 2. The DW01A Protection IC & 8205A Dual MOSFET

Illuminates when the battery voltage reaches 4.2V and the charging current drops below the termination threshold (1/10th of the programmed current).