Gregory Davill is a technical expert from Australia who is very famous and active in the field of open source hardware. In December 2020, he insisted on designing a circuit board every day, using KiCad to complete the circuit design and PCB layout and routing. This is the adventure-calendar-of-circuits-2020 project. This design is a JTAG programmer based on FT232H.
It is a very beautiful and convenient 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.
The most interesting part is the problem of energy collection without batteries. Currently, it provides energy collection by clicking buttons and solar energy collection. Ambiq Apollo3 for main control.
Open source material for the Arduino UNO Mini Limited Edition.
SwarmDrive based on ESP32 has rich teaching documents, professionals and students can use it to easily learn various commutation algorithms and related knowledge of BLDC motors.
The lazy self-care fish tank control system is mainly aimed at fish farming enthusiasts. As long as you use your mobile phone through BLE, you can manually control the start, stop, and feeding of the fish tank's electrical appliances. At the same time, the real-time time, supplementary lighting time, automatic feeding time, water temperature monitoring and alarm, etc. can be set through the APP at once. Enthusiasts are only responsible for watching and appreciating the fish, and the other things are left to the control system!
Use the Android cable to connect the voice chip and connect it to the computer. At this time, there is a removable disk on the computer, and then put the sound file into the removable disk... Materials used: Voice playback module Yabo 51 microcontroller (refer to this microcontroller The digital tube and the 8 free IO ports can be used) 3 10k resistors... Put the sound file into the voice chip and connect the data line and power line to the microcontroller. Use the keil tool to generate the hex file from the c program. And write it into the microcontroller...
This project applies the bidirectional Z-source inverter to the motor drive system of pure electric vehicles. Using TMS320F2808 DSP as the control core, the SVPWM control technology based on the Z-source inverter is implemented.
A complete collection of complex robotic arm drawings, including Fanuc 100iB
Protues simulation example (8051)-parallel port to serial port
Protues simulation example (8051)-SPI demonstration file two 595 docking
Protues simulation example (8051)-PWM wave output (adjustable)
The collection of papers from previous electronic design competitions includes design ideas, circuit diagrams and corresponding program flow charts for function signal generators, oscilloscopes, automatically controlled balancing cars, radios, etc.
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.
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