UDP test based on STM32 and network chip W5200
The TIDA-00913 reference design implements a 48V/10A three-phase GaN inverter with precision shunt-based in-line phase current sensing for precise control of precision drives such as servo drives. One of the biggest challenges with shunt-based in-line phase current sensing is the high common-mode voltage transients during PWM switching. The INA240 bidirectional current sense amplifier uses enhanced PWM rejection to overcome this problem. This reference design provides an output voltage from 0 to 3.3V, regulated to ±16.5A, with a mid voltage of 1.65V, enabling highly accurate phase current over temperature. TIDA-00913 provides a TI BoosterPack-compatible interface to connect to the C2000 MCU LaunchPad™ development kit for easy performance evaluation.
Pulse electronic blood pressure monitor based on STM32 (schematic + program)
Proximity and ambient light sensor expansion board for STM32 Nucleo, based on VL6180X
The overall idea of the project is to use the GD32E231 development board as the main control unit, use the OLED12864 display screen as the human-computer interaction module, and connect the device to the cloud through the ESP8266 WIFI module set, so that basic intelligent functions can be initially realized.
Magnetic rotary encoder for angle measurement with contact-free knob
Battery-powered water meters face a challenge: continuously measuring water flow information while consuming as little power as possible. The EVM430-FR6989 used in this design uses a MSP430 FRAM-based microcontroller, which can provide 100uA/MHz active mode current and 450nA standby mode current, support real-time clock function, and integrate low-power analog and digital peripherals. Additionally, the MCU offers virtually unlimited write endurance, fast/low power writes and data flexibility. This reference design demonstrates how to use the integrated Extended Scan Interface (ESI) on a microcontroller to achieve ultra-low power consumption (versus the same detection method using external circuitry). In a water meter design, if coupled to the LC rotation detection sensor (supplied), the ESI continuously detects thruster rotation while the rest of the microcontroller is in a low power mode. The design automates the measurement process and reduces CPU involvement by using the ESI integrated in the MSP430 MCU, which helps reduce overall power consumption.
STM32 Nucleo-144 development board using STM32H745ZI MCU and SMPS, supporting Arduino, ST Zio and morpho connections
When the temperature is lower than the set threshold, the corresponding indicator light lights up and the corresponding relay is closed. The relay can drive the load (fan, refrigeration plate, heating tube, etc.). When the temperature is higher than the alarm value, the sound and light alarm will sound. The keys are setting keys, plus key and minus key. The alarm value and temperature control range can be set, the temperature measurement range is 0 to 99.9 degrees Celsius, and the accuracy is 0.1 degrees Celsius.
ST25R3911B based NFC reader expansion board for STM32 and STM8 Nucleo
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