The Sub-μA Current Sensor is a Kinetis K22F based current measurement board running on FreeRTOS and can be used with the Freedom Development Ecosystem or any other Arduino-like development board.
This reference design allows for non-intrusive connection between any MCU and a 3.3V shield and measurement of a wide range of low currents (~60 nA – 5 mA). Multiple communication methods are available, including integration with Freedom Sensor Toolbox (CE).
The circuit in this design can control the automatic operation of the water pump motor according to the water level in the water tank and the set time. It has been used for more than a year and has excellent anti-interference and stability. Now I will introduce it to peers and microcontroller enthusiasts. The specific circuit is divided into four parts: microcontroller circuit, power supply circuit, water tank circuit and motor control main circuit.
Using SPCE061A to develop a data acquisition system has great market prospects. First of all, its easy-to-learn and easy-to-use programming voice and development environment allow beginners to get started quickly; secondly, it has a modular structure and built-in 7-channel 10-bit AD, simplifying the user's circuit design; thirdly, it has voice Recognition and audio processing functions allow users to develop more intelligent products
This project uses msp430g2231 as the core processing chip, which is composed of sensor acquisition module, wireless communication module, alarm module and host computer; two msp430 launchpads are used to simultaneously collect temperature and humidity through the dht11 temperature and humidity sensor, one as the host and the other as The slave machine uses a wireless communication module to communicate with the host machine, and the communication distance is more than 20 meters; the host machine directly communicates with the computer to transmit the temperature and humidity data to the computer, and at the same time, the upper limit of temperature and humidity can be set for The computer alarm can be used to differentiate between the host and the slave by playing specific songs or recording. In this way, you can first hear the changes in temperature and humidity. If you want to know the specific values of temperature and humidity, you can directly check it through the host computer. Specific temperature and humidity values enable real-time monitoring of the temperature and humidity of greenhouse vegetables, greatly improving the efficiency of large-scale planting.
The PK-HCS08GB60 starter kit is designed for evaluating the MC9S08GB60 microcontroller and debugging small user applications. The starter kit leverages the CodeWarrior® integrated development environment (which combines an editor, assembler, C compiler and debugger) and the NXP BDM interface to allow users to download their application into the microcontroller's flash memory and debug it. Together with CodeWarrior®, this starter kit gives you everything you need to write, compile, download, in-circuit simulation, and debug user code. Full-speed program execution enables you to perform hardware and software testing in real time. The starter kit connects to the host computer via a USB port. The prototyping area allows you to connect your own small application.
As global energy consumption continues to grow, especially in the residential market, utility providers require increasingly accurate and cost-effective energy metering solutions. The Kinetis® M Series two-phase energy meter reference design meets these accuracy and cost requirements by providing a high-performance analog front end combined with an embedded programmable gain amplifier to improve the accuracy of energy measurements.
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