
III. Functional Modules
1S lithium battery 2P connector. Can be replaced according to personal preference.
is used with the flashing board; pay attention to the wiring sequence.
5V-IN power comes from the USB. When the USB is plugged in, Q3 is off, and AUX_VCC equals 5V_IN. When the USB is not plugged in, Q3 is on, and AUX_VCC equals VBAT. This module allows for automatic selection of two power sources.
a pre-installed switch on the board, which is almost a standard feature and very convenient. The indicator light shows the board's power status.
The DC-DC step-down module - ETA3409S2F - has an input voltage of 2.4-7.3V and an output current of up to 3A. This module is also used on the 01-RTC and flashing board, increasing efficiency.
uses an ESP32 microcontroller with built-in Wi-Fi and Bluetooth. It's a dual-core MCU, versatile and powerful.
is a standard design feature; this function displays the battery voltage and charge level.
: One function button is reserved for developers; users can customize the function according to their needs.
: Two 1313 joysticks. Standard ADC and button design, no further explanation needed. Note that the linked version does not include automatic centering. If you need automatic centering, please find it yourself; this shop also sells
The screen chosen is the capacitive touchscreen recommended by 01-RTC; this screen offers good value for money. The screen protocol is SPI, and the touch protocol is IIC.
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