Graduation project based on 51 microcontroller electronic scale design materials (schematics, source programs, papers, etc.)

Contains all design information

Schematic PCB

Evaluation Module (EM) Adapter

This BoosterPack package contains an "EM Adapter BoosterPack". The purpose of this EM adapter board is to provide an easy-to-use bridge between any TI MCU LaunchPad and various TI RF Evaluation Modules (EMs), such as the CCxxxx Low Power RF Evaluation Modules. No specific software is provided, so it is the user's responsibility to write the appropriate code to interface between the MCU and the RF device.

Schematic PCB

Industrial battery management module reference design for 20S applications

High cell count battery (>15s) systems are increasingly used in industrial applications. These applications are more cost-sensitive and require a simple solution that can include monitoring, protection and control functions, and even SOC (state of charge) information, rather than just basic independent hardware protection. This reference design provides the platform for a complete battery pack side solution. Contains all independent hardware protection functions of the bq76930, and implements a reliable communication interface for the host device to read battery information.

Schematic PCB

KITMPC5744DBEVM: Evaluation Daughter Board - NXPMPC5744P, 32-bit microcontroller

The KITMPC5744DBEVM evaluation board is equipped with the MPC5744P, the second generation of the MPC5xxx series of secure microcontrollers.

Schematic PCB

STSPIN830-based three-phase brushless DC motor driver expansion board for STM32 Nucleo

Three-phase brushless DC motor driver expansion board for STM32 Nucleo, based on STSPIN830

Schematic PCB

Dual Output Isolated SSR Flyback Converter Using VIPER267KDTR for Smart Meters and PLC Systems

Dual Output Isolated SSR Flyback Converter Using VIPER267KDTR for Smart Instruments and PLC Systems

Schematic PCB

ST25DV04K based dynamic NFC/RFID tag IC expansion board for STM32 Nucleo

Dynamic NFC/RFID tag IC expansion board for STM32 Nucleo, based on ST25DV04K

Schematic PCB

Monitor refrigerator temperature using ESP32-DevKitC based on ML model

Using the Edge Impulse platform, an embedded machine learning (ML) model is deployed on the ESP32-DevKitC-based sensor for temperature anomaly detection.

Schematic PCB

Bidirectional 400-V/12-V DC/DC Converter Reference Design

The Bidirectional 400V-12V DC/DC Converter Reference Design is a microcontroller-based implementation of an isolated bi-directional DC-DC converter.  A phase shifted full-bridge (PSFB) with synchronous rectification controls power flow from a 400V bus/battery to the 12V battery in step-down mode, while a push-pull stage controls the reverse power flow from the low voltage battery to the high voltage bus/battery in boost mode.  In this implementation closed loop control for both directions of power flow is implemented using Texas Instruments 32-bit microcontroller TMS320F28035, which is placed on the LV side. This digitally-controller system can implement advanced control strategies to optimally control the power stage under different conditions and also provide system level intelligence to make safe and seamless transitions between operation modes and PWM switching patterns.

Schematic PCB

Half bridge induction cooker

Source program based on 51 microcontroller multifunctional smart desk lamp (with clock, posture correction, display temperature and brightness)

Function description: 1. After power on, the LED light lights up, which means that the current light is in automatic control mode; 2. You can switch back and forth between automatic and manual modes through button K5; 3. In manual mode, buttons K2, K3, and K4 correspond to A light brightness; (unavailable when k1 is pressed) 4. In automatic mode, it must first detect someone before automatically controlling the brightness, otherwise the desk lamp will go out. You can block the light of the photoresistor, or use a flashlight to illuminate the photoresistor to simulate changes in lighting, so that you can see that the brightness of the desk lamp will change as the light intensity in the environment changes. The effect is that the weaker the light, the brighter the desk lamp. . If the human body sensor cannot detect anyone for 1 minute, the desk lamp will automatically turn off. (The photoresistor is behind the USB lamp); 5. Whether it is automatic mode or manual mode, the brightness is divided into 10 levels, and 0-9 is displayed on the LCD; 6. Set date and time: Press K1 (setting ) key, the cursor will flash at the displayed year position, indicating that the year can be adjusted at this time. If you need to adjust the year, press K3 (plus) and K4 (minus) to adjust the year. Then press the K2 (move) key, and the cursor will flash when the month position is displayed. The month can be adjusted in the same way. Press the K2 key again to set the day, hour, minute, and second respectively. 7. When approaching the ultrasonic wave, the buzzer will alarm.

Schematic PCB

CN0174

Low-Noise 12 GHz Microwave Fractional-N Phase-Locked Loop (PLL) Using Active Loop Filter and RF Prescaler

Schematic PCB

FRDM-KL26Z: Freedom Development Platform for Kinetis ^{® KL16 and KL26 MCUs (up to 128 KB Flash)}

Freedom KL26Z is an ultra-low-cost development platform for Kinetis L-series KL16 and KL26 MCUs based on Arm ^® Cortex ^® -M0+ processors.

Schematic PCB

Lite3DP 3D Printer: Arduino-based open source MSLA / LCD-SLA resin micro 3D printer kit (schematic, PCB, source code, etc.)

Lite3DP is a micro 3D printer that uses high print quality, virtually silent MSLA technology. It is the first of its kind to be completely Arduino-based, is open source, and comes in an easy-to-assemble kit format. It is a simple machine designed for experimentation to provide an in-depth and complete understanding of its operation. It can be placed on almost any table or in any workshop. MSLA resin 3D printing technology can achieve stunning levels of detail and surface finishes that are far superior to what can be achieved with filament 3D printers – primarily by using screen-cured resins such as LCDs on Lite3DP. Although 3D printers with MSLA technology are already available at similar prices to filament printers, they are closed-source projects that eschew one of the most valuable features of modern 3D printing - accessibility.

Schematic PCB

LoRa® IoT Tracker

LoRa® IoT Tracker

Schematic PCB

STM32 Nucleo dual-axis stepper motor driver expansion board based on device L6470

Dual-axis stepper motor driver expansion board for STM32 Nucleo, based on L6470

Schematic PCB

KITFS4503CAEEVM: FS4503, System Basis Chip, Linear 0.5A Vcore, FS1b, LDT, CAN

Schematic PCB

CN0079

High-precision digital-to-analog conversion using AD5542/AD5541 16-bit voltage output DACs, ADR421 voltage reference, and AD8628 auto-zero op amp

Industrial battery management module reference design for 20S applications

High cell count battery (>15s) systems are increasingly used in industrial applications. These applications are more cost-sensitive and require a simple solution that can include monitoring, protection and control functions, and even SOC (state of charge) information, rather than just basic independent hardware protection. This reference design provides the platform for a complete battery pack side solution. Contains all independent hardware protection functions of the bq76930, and implements a reliable communication interface for the host device to read battery information.

Schematic PCB

SimpleLink™ Wi-Fi® NFC Reader

This TI design combines TI's wireless microcontroller (CC3200) with third-party vendor DLP Design's TRF7970 NFC BoosterPack to simulate a near field communication (NFC) card reader that scans from an NFC card to of data is transmitted securely and in real time over Wi-Fi networks to any remote location or database. Disclaimer: DLP Design, Inc. is not affiliated in any way with DLP® products from Texas Instruments Incorporated.

Schematic PCB