OM13513: RTC demo board contains PCF2127T and PCF2129AT

Dual motor drive control platform based on STM32F415ZG microcontroller

Dual motor drive control level based on STM32F415ZG microcontroller

Schematic PCB

PEmicro Cyclone Programmer

Schematic PCB

STM32 Nucleo-64 development board for STM32F446RE MCU, supports Arduino and ST morpho connections

STM32 Nucleo-64 development board using STM32F446RE MCU, supporting Arduino and ST morpho connections

Schematic PCB

ESP32-breakout：ESP32S2 + Sharp memory LCD + prototyping area

ESP32S2 + Sharp memory LCD + prototyping area

Schematic PCB

DER-831 - 2.5 W non-isolated flyback power supply based on LinkSwitch-CV

Schematic PCB

IoT entry-level example based on MQTT message communication: GD32E231+ESP8266 implements Wi-Fi remote temperature and humidity collection, control and network clock

This solution is based on the GD32E231 Cortex-M23 core MCU as the main control. The Wi-Fi module uses Essence's ESP8266 and is developed for secondary use. The LCD screen using the SPI interface displays relevant information. The peripheral circuit part uses simple LED lights. Buttons and sensors to complete the demonstration function with the MQTT server.

Schematic PCB

CN0259

High-performance 65 MHz bandwidth quad-channel IF receiver with anti-aliasing filter and 184.32 MSPS sampling rate

Schematic PCB

RDR-721 - LinkSwitch-TN2 based 2.75W non-isolated buck converter for home automation

Schematic PCB

Infrared remote control alarm (schematic + PCB diagram + program + documentation).rar

The infrared controlled temperature alarm produced for this competition took half a month to make. It is a simple device made of AT89S52 with LCD 12864 as the display platform, including infrared remote control, temperature measurement, time display, alarm reminder and picture browsing. Infrared controlled temperature sensor.

Schematic PCB

CN0209

Fully programmable universal analog front end for process control applications

Schematic PCB

HealthyPi Move: Open source, smart health watch that is as good as professional ones

Supports continuous or intermittent monitoring of important biometric signals such as ECG, heart rate, HRV, PPG, SpO₂, blood pressure trend and respiration. It integrates daily use and advanced research applications.

Schematic PCB

Evaluation board for STM32H757XI MCU

Evaluation board using STM32H757XI MCU

Schematic PCB

Motor Control Nucleo Module with NUCLEO-F302R8 and X-NUCLEO-IHM07M1

Motor Control Nucleo Kit with NUCLEO-F302R8 and X-NUCLEO-IHM07M1

Schematic PCB

EtherCAT Slave Device and Multi-Protocol Industrial Ethernet Reference Design

This reference design implements a cost-optimized, high-EMC immunity EtherCAT slave (dual port) with an SPI interface to the application processor. The hardware design leverages the AMIC110 industrial communications processor to support multi-protocol industrial Ethernet and fieldbuses. The design is powered by a single 5V supply; the PMIC generates all necessary on-board rails. The EtherCAT slave stack can run on the AMIC110 or on an application processor using the Serial Peripheral Interface (SPI). Using hardware switches, the AMIC110 can be configured to boot EtherCAT slave firmware from SPI flash memory or from the application processor via SPI. The design has been tested for IEC61800-3 EMC immunity with a standard industrial PLC running an EtherCAT master. JTAG interface speeds custom firmware development.

Schematic PCB

Intelligent electronic device (IED) system based on IEC61850

Smart grid can improve the efficiency, reliability, and economy of power generation and distribution through a high degree of automation of the power system to ensure the sustainable development of the power network. Intelligent electronic devices (IEDs) are the basic elements of smart grids, providing the detection, measurement, protection and control functions required by the system.

Schematic PCB

S32K116EVB: S32K116 universal evaluation board

Schematic PCB

Design of forehead thermometer based on STM8S handheld non-contact infrared thermometer gun MLX90614 (schematic diagram, PCB, source program)

Based on the STM8S handheld non-contact infrared thermometer gun MLX90614 forehead temperature gun design, including schematic diagram, PCB, source program, etc.

Schematic PCB

OM13514: PC evaluation board for I²C-bus RTC PCF85363A

Triggered voice time reporting system and voice recognition circuit

The system developed in this article is based on the existing triggered voice time reporting system, adding a speech recognition circuit, so that the developed system can have the function of dialogue response time reporting, and realize the truly automated and intelligent voice time reporting.

Schematic PCB