SYZYGY is an FPGA extension standard for medium to high speed interfaces. This project is a splitter that outputs video to a regular digital display and also supports input from a digital display.
ESP32S2 + Sharp memory LCD + prototyping area
The icebreaker project is a very nice and handy little board. But it has a small flaw, the ice40 FPGA it uses is very simple, and it's generally fun to see people doing exciting projects with 5k LUTs. Sometimes it's convenient to have some extra space available when experimenting.
This project includes all the software and hardware design required to develop the T12 soldering station. The PID parameters are mature and the function completion is very high.
Little Bee is an affordable, high-performance current probe and magnetic field probe that allows you to debug and analyze electronic devices more efficiently.
The schematic diagram is open source, you can see if there is anything worth learning from. This baseboard is designed for their previously launched H7 core board.
The software part of this tool (including the host computer) is not open source, but the schematic diagram and PCB related files are.
Israeli network engineer Nir Huri invented an air pollution monitoring device based on ESP-32.
Nowadays, almost all circuit boards use surface mount packaging, so I have always wanted to DIY a chip placement machine. After searching online for a long time, I finally decided to use the open source OpenPnP. The hardware and software are both open source.
Built-in gyroscope, buzzer, supports multiple fast charging protocols, 128x64 OLED screen, standard T12 fixed bayonet. Regarding the problem of grounding the soldering iron, you can use the PD power supply of Mac and prepare a triangle extension cable to solve the problem perfectly. Or using a power bank directly is not a big problem.
This project uses STM32F103RET6 as the main control, and is modified based on ST's official CMSIS-DAP project to achieve offline and read-protected programming (because the project currently only has F103 series offline programming requirements, so only F103 programming is temporarily added. write algorithm).
Open sourced by Bilibili up, DCDC-LDO secondary step-down power supply, tc1047 for cold-end compensation, built-in curve fitting calibration function, and supports 65W gallium nitride charger.
Introducing a Bluetooth case - a data transparent transmission application developed based on the MM32W series.
The RSL10 module is plugged into the self-made optocoupler isolation circuit board, and the entire module is connected in series with the modified target instrument (4-20mA two-wire passive digital display meter) and then connected to the 4- In the 20mA current loop, when the actual working zero current is 4mA, the target instrument displays 4.000mA in the current mode; the overall voltage drop of the circuit board of the work is 2.513V; the changed range or unit is sent to the RSL10 on the circuit of the work through the mobile APP Setting command, the target instrument (currently its own voltage drops by more than 1V) will be changed by Bluetooth remote control to change the setting state, such as switching to different ranges or displaying different measured physical quantity units, etc.
The system uses TI's MSP430F149 microcontroller as the core controller. This microcontroller has a 16-bit CPU integrated register and constant generator, which can maximize the code efficiency of the microcontroller. It integrates JTAG and supports online programming; two universal full-duplex Serial synchronous/asynchronous communication interface; PWM control output; external interrupt input interface. The microcontroller is responsible for sampling the bus door opening and closing signals, turning on or off the infrared counting module, recording the number of people getting on and off at each bus stop, storing the data on the number of people getting on and off at each bus stop, and transmitting the stored data to the computer.
Contains all design information
Detect whether there is smoke and flammable gas in the environment. If the above gases are present, send an alarm text message to the mobile phone.
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.
Based on STM32 imitation Mitsubishi PLC design, including program and circuit diagram
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