Open Source Electromyography EMG Project

In the open source electromyography project shared here, the author used this product to create a computer game control effect.

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An open source project to recreate classic Casio watches

The Sensor Watch is unlike most smartwatches.

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A smart watch design with all open source software and hardware

Hardware configuration: Dialog Semiconductor DA14683 for master control, with BLE5.0

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Lu Feikui, Qinheng RISC-V smart bracelet

It adopts Qinheng's self-developed RISC-V microprocessor "Highland Barley V4" and integrates 2Mbps low-power Bluetooth on the chip. It is equipped with a blood oxygen and heart rate module, a nine-axis sensor, a motor drive module, a low-power touch detection module and a 0.96-inch high-definition IPS display to meet the application needs of general bracelets.

Schematic PCB

Watchy - ESP32 ink screen watch with open source software and hardware

​Watchy is a completely open source and customizable e-ink screen watch. It uses ESP32-PICO-D4 as the core, has WiFi and Bluetooth LE connectivity, and is compatible with Arduino, MicroPython and ESP-IDF. The 200x200 pixel resolution e-paper display is clearly visible in bright sunlight and has ultra-low power consumption.

Schematic PCB

ESP32-Smart-Watch - Open source smart watch based on ESP32 WROOM

This project is a completely open source smart watch based on the ESP32 WROOM module, with a very high degree of completion. In the project design, serial communication and charging are completely through the onboard micro USB interface, without any external interface board processing.

Smart wearable devices based on RSL10

A smart wearable device based on the RSL10 development board officially provided by EEWORLD. This device is divided into two parts: the host and the slave. However, this MCU only has one UART, but in actual project requirements we need to use two UARTs. The organizer of this event gave five boards, so a board without a sensor is used as the SPI slave and will receive The command parses and uses AT commands to control the audio.

Schematic PCB

Environmental expert’s smart watch

The work is mainly based on smart watches as a product that contributes to mine operations. The shape of [RSL10-SENSE-GEVK] is perfect for making a watch. All the onboard peripherals are utilized. The watch will collect data every once in a while and store it in the onboard external Flash. A total of fourteen days of historical data can be stored. If the power consumption is reasonably designed, it can Replace the button battery every two months. Normally worn in the normal mode, you can enter the downhole mode by pressing the button. In the downhole mode, the surrounding environment will be detected. When the environment reaches a bad situation, it will enter the alarm state. At the same time, when the person going down the pit feels uncomfortable, he can long press the button to enter the call for help state.

Schematic PCB

Running posture training shoes

This design is designed for foot posture. Wrong running posture can be corrected through real-time prompts on the mobile phone APP, thereby solving various adverse consequences caused by incorrect running posture.

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Based on DA14580_ADXL362 schematic diagram (Xiaomi bracelet solution)

Based on DA14580_ADXL362 schematic diagram (Xiaomi bracelet solution)!

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OM17057: Demonstration board for BGU6104 low noise amplifier, ISM and LTE bands

OM7859: BGA3015 Demonstration Board, 1 GHz 15 dB Gain Broadband Amplifier Application

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OM7867: BGA3015 Demonstration Board, 40 MHz to 1006 MHz Push-Pull Amplifier Application

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OM7863: BGA3015 Demonstration Board, 5 MHz to 300 MHz 15 dB Gain Inverse Amplifier Application

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OM7860: BGA3018 Demonstration Board, 1 GHz 18 dB Gain Broadband Amplifier Application

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OM7868: BGA3018 Demonstration Board, 40 MHz to 1006 MHz Push-Pull Amplifier Application

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OM7865: BGA3018 Demonstration Board, 40 MHz to 2600 MHz Broadband Amplifier Application

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OM7864: BGA3018 Demonstration Board, 5 MHz to 300 MHz 18 dB Gain Inverting Amplifier Application

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The first prize of the electronic competition, the elderly health monitoring smart watch (STM32F4 master).zip

The first prize of the electronic competition, the elderly health monitoring smart watch (STM32F4 master control).

Schematic PCB

TEA1836DB1200: TEA1836 45 W 19.5 V QR/DCM wall charger

This TEA1836 board demonstrates an ultra-compact, high power density, and cost-effective 45 W / 19.5 VAC/DC switch mode power supply (SMPS) wall adapter, typically used for ultrabook and tablet likely applications.

Schematic PCB