is mainly used for firmware updates of 100Mbps embedded devices.
The chip datasheet can be found by searching "MS1826" on Taobao. Only one store sells it; you can request the datasheet from their customer service. The SDK is a complete NDA (a few months ago you could directly ask their customer service for it, but now you need to provide your company name for registration). It is not provided here. This project is developed entirely based on open-source materials and does not involve any confidential project
testing.
PDF_MS1826 test board.zip
Altium_MS1826 test board.zip
PADS_MS1826 test board.zip
BOM_MS1826 test board.xlsx
95350
Old Five 1.7-inch Rounded Corner Screen - XSJ170HA1602
The fifth seller has already sold out of "brand new IC ST7789 watch display".
A package library has been built for the adapter board of the Laowu 1.7-inch rounded corner screen - XSJ170HA1602.
You can search for it and use it directly if needed.
This module can use PWM dimming.
PDF_Old Five 1.7-inch Round Corner Screen - XSJ170HA1602.zip
Altium_Old Five 1.7-inch Rounded Corner Screen - XSJ170HA1602.zip
PADS_Old Five 1.7-inch Rounded Corner Screen - XSJ170HA1602.zip
BOM_Old Five 1.7-inch Rounded Corner Screen - XSJ170HA1602.xlsx
95351
STM32L051C8T6 Development Board
The STM32L0 series is STMicroelectronics' entry-level 32-bit ultra-low-power MCU product portfolio. An STM32L051C8T6 core board was created for ease of use and compatibility with the Blue Board (a popular Chinese microcontroller platform).
HAL_TEST.zip
PDF_STM32L051C8T6 development board.zip
Altium_STM32L051C8T6 development board.zip
PADS_STM32L051C8T6 development board.zip
BOM_STM32L051C8T6 Development Board.xlsx
95353
Neodoc M463
Nuvoton M463/467 Development Board
Nuvoton M463/467 small development board, including a DAPlink debugger with CH32V203F6P6 chip.
PDF_New Tang Dynasty M463.zip
Altium_New Tang M463.zip
PADS_NewDominionM463.zip
BOM_New Tang M463.xlsx
95354
TB6612 driver board
The TB6612 driver board is a commonly used circuit board for controlling DC motors, and it is usually based on the TB6612FNG chip. The TB6612FNG is a dual-channel H-bridge DC motor driver that features a small package, low voltage operation, and low current consumption.
Engineering Principle:
The TB6612 driver board operates on the control principle of an H-bridge circuit. An H-bridge circuit is a circuit structure that controls the direction and speed of a motor. The TB6612FNG chip integrates two independent H-bridges, capable of controlling two DC motors.
Its working principle primarily involves controlling the pin input signals of the TB6612FNG chip to control the motor's direction and speed. By inputting PWM signals and direction control signals, the TB6612FNG can control the motor's speed and direction.
Function:
The TB6612 driver board controls the movement of DC motors, enabling direction, speed, and stopping.
PDF_TB6612 driver board.zip
Altium_TB6612 driver board.zip
PADS_TB6612 driver board.zip
BOM_TB6612 driver board.xlsx
95355
TPA3116 Bluetooth Digital Amplifier Board v2.0
The TPA3116 dual-chip PBTL (100W + 100W), with Bluetooth and an op-amp (in actual testing, with the volume at maximum and the input terminal shorted about 5cm from the speaker, there is virtually no background noise),
was designed to fill a gap in the 3116 market.
The power amplifier chip is TPA3116D2DAD, dual-channel 100W x 2, featuring power-on/off anti-pop sound, previous and next track control buttons, infrared remote control, Bluetooth audio and aux input functions, and
a power supply range of 9-25V.
The op-amp and Bluetooth power supply use a more energy-efficient step-down module instead of a regulator module like the 7805,
because the op-amp and Bluetooth have higher power requirements. I specifically added two 100uf "Green Wave Electric Dragon" audio input capacitors. I used "audiophile-grade" solid-state capacitors (not really).
Since the budget was relatively ample, I also added several filter capacitors to the chip area (100nF x 3, 1uf x 2, 1nF... ). x4)
The entire device uses two 2200uf, 35V high-frequency low-impedance capacitors (I bought the wrong package again, but it should be fine if all materials are ordered from LCSC).
Bluetooth module, buck module, and heatsink purchase links (Taobao and Pinduoduo): http://xa9.top:7777/webftp/web/TPA3116-bt-v2.0/module.html
Finally, a friendly reminder: A 24V circuit absolutely MUST have a cooling fan! Otherwise, the inductor will get hotter than the chip!
PDF_TPA3116 Bluetooth Digital Amplifier Board v2.0.zip
Altium_TPA3116 Bluetooth Digital Amplifier Board v2.0.zip
PADS_TPA3116 Bluetooth Digital Amplifier Board v2.0.zip
BOM_TPA3116 Bluetooth Digital Amplifier Board v2.0.xlsx
95356
electronic
We recommend choosing the P50-Q1 model.
It features STLink and serial port 1 (PA9, PA10) interfaces, allowing connection using STLink devices with serial port functionality.
physical demonstration of the CH340N serial communication verification program is attached.
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