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AP-AMS Control Board 3.0

Overview

GitHub project: https://github.com/applenana
This PCB is the control board for the AP-AMS project. Key features:

1. The board uses an LM2596S to accept 35V-5V step-down to 5V, and an AMS1117 to step down 5V to 3.3V.
2. Three WS2812 (5050) circuits are connected in series to display the operating status.
3. A TC118S is used to control a single motor.
4. An ESP12F module is used as the main controller.
5. Three I/O channels are open: I/O 14 is pulled low via a 51k resistor, I/O 16 is pulled low via an internal pull-down resistor in the ESP12F, and the ADC can be optionally pulled low via a 51k resistor.
Note: Most components on the board have short-circuit protection, but the motor driver IC [TC118S] does not. Under normal use, this IC is stable and durable, but it will fail if short-circuited. Please ensure proper insulation of the motor!

BD0C70F21843AE6AD8123FEF8398C0CE.mp4

PDF_AP-AMS Control Board 3.0.zip

Altium_AP-AMS Control Board 3.0.zip

PADS_AP-AMS Control Board 3.0.zip

BOM_AP-AMS Control Board 3.0.xlsx

94138

Developing an ammeter based on a 51 microcontroller

This USB power meter, based on the STC8H1K17 main controller and sampling the INA180, can detect the main circuit voltage and current, D+ and D- voltages, display running time, real-time power, and power consumption statistics. It includes a button to clear running time and power consumption statistics. It also features a PD decoy function.

Summer is here, and electricity consumption is increasing as various appliances are used more frequently. This led to the creation of a power meter to calculate electricity usage. This project references https://oshwhub.com/l1009184289/usb-dian-y. The main
control
chip is an STC microcontroller, and the current sampling chip is a Texas Instruments INA180. This chip can detect the main circuit voltage and current, D+ and D- voltages, display running time, real-time power, and current flow statistics. It also includes a button to clear running time and power statistics, and a CH224K decoy chip that supports both type and type input. The circuit features a Type-C input and a button for configuring the CH224K spoofing voltage. The screen uses a 0.96-inch ST7735TFT (the spoofing program function is not yet written;
the schematic design description includes:
the first part is the power supply section and INA188 sampling circuit design;

the second part is the Type-C input and CH224K spoofing circuit design;

then the DC-DC circuit uses an ME3116 step-down chip

connected in series with a 10k resistor for voltage division and sampling;

finally, the main control and screen circuit

PCB design description includes
a two-layer board with color silkscreen printing

; software description;
physical demonstration description;

and precautions.
Reproduction is not recommended at this time.
A demonstration video is also available.)

WeChat_20240621125534.mp4

WeChat_20240621125530.mp4

WeChat_20240621125523.mp4

USB Power Meter Based on STC Microcontroller.zip

PDF_Ammeter Developed Based on 51 Microcontroller.zip

Altium_Ammeter Development Based on 51 Microcontroller.zip

PADS_Ammeter Development Based on 51 Microcontroller.zip

BOM_Development of an Ammeter Based on a 51 Microcontroller.xlsx

94139

electronic

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 07:51:44

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