This technology is suitable for products that are waterproof and dustproof or can be disassembled and cleaned. Taking the wall-breaking machine as an example, a temperature detection function is built into the cup body, and wireless power supply and data communication are used to transmit the temperature data to the host. Two wireless power supply architectures are available: a transparent transmission module architecture to facilitate product function upgrades, or an integrated main control chip architecture to streamline hardware costs.
2-layer PCB 100 x 100 mm FR-4, 0.8 mm, 1, tinned with leads, green solder mask, white silkscreen;
Traditional thermostats use monochrome LED or LCD solutions. In the past, the price of color LCD was out of reach. However, as demand increases and production expands, the price gradually becomes more affordable, which in turn makes the display screens of household appliances gradually move towards color LCD. Through the color LCD, the status display of temperature, weather and humidity can be made more humane, and more interactive effects can be made, including time switches, settings, etc., which can have more amazing performances.
LNB power supply demonstration board based on LNBH23
This design is a system built using AT98C51 microcontroller. The wireless answering terminal uses a combination of PT2262 transmit encoding chip + F05P transmit module (including thesis description, circuit diagram, and C program are complete)
Heart-shaped running water lamp program and circuit.
Xiaomi gravity sensor remote control (contains schematic diagram, code)
This 65W Type-C PPS reference design uses Infineon's EZ-PD™ PAG1S and PAG1P controllers and CoolGaN™ 600V GIT HEMT. The solution complies with international energy efficiency standards including DoE Level 6/CoC Level 2 and has low standby power. The solution is tested to CE standards defined by CISPR32 Class B and provides a high board-side power density of 22.16 W/in3. This solution is designed for use with USB PD (including PPS), QC power adapters. Adapters covering traditional charging protocols including Apple Charging, BC1.2, QC 3.0 and Samsung AFC are also supported. PAG1S and PAG1P jointly provide low BOM cost, high-performance solutions compatible with PD/PPS/QC.
This solution has built-in various font font libraries, and various font font libraries can also be loaded through the NTD font conversion tool. It is equipped with a 2-inch OLED display customized graphics interface, and has high-speed GIF dynamic bitmap decoding (LZW), which can Play GIF animations smoothly.
The program is written in C language and contains MLX90614 temperature measurement, OLED driver, and 4004-8 voice chip driver. The entire system is user-friendly. The user can choose voice broadcast or OLED display, low temperature or over-temperature alarm, and forehead skin function. Conversion formula from temperature to real body temperature (the formula has been verified by actual measurements and has high accuracy). The entire system has been verified to be feasible, and the measurement results were compared with electronic thermometers on the market, with an accuracy higher than 98%.
This reference design shows how to develop a high-performance, high-voltage 2- or 3-wire 4–20mA current-loop transmitter suitable for industrial process control and smart sensors. Error analysis and overtemperature characterization data as well as hardware design and software are provided.
51 microcontroller password lock LCD display
Light cube production source code + schematic diagram.
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