Flirting with jumper caps is a common practice on most boards, but not this board, which is designed to replace all those wires with an analog switch matrix. All one has to do is plug in the device and make a virtual connection on the accompanying GUI. There are also many built-in functions such as DAC and ADC, and the circuit can be switched under the prototype as needed. It also has some LEDs embedded in the breadboard area that light up and provide visual cues that they are connected to each other.
This work is a thermometer based on face recognition. The appearance of the work is a temperature measuring gun. The work is mainly composed of the K210 kit provided by Sipeed, Hetai HT32F52352 chip, WIFI communication module, cloud server, IC card reader module and LDO power module. etc., the K210 is controlled by the HT32 chip to collect images in real time, and the collected images are processed locally. If there is facial information in the collected images, the facial features are extracted based on the face model, and then compared with the person in the image library. Compare the feature values of the face, and return the recognition results to the HT32 chip and the host computer for us to view the temperature measurement results. The following is a physical picture of the overall work and an introduction to its functions.
In the epidemic environment, people don't want to touch things outside, so we create a face recognition access control system that does not require contact. When it is detected that a person is approaching the door, the face recognition device is awakened to save power consumption. When the face recognition passes, the door is controlled to open.
2-layer PCB 9 x 11.4 mm FR-4, 1 mm, 1, HASL with leads, blue solder mask, white silkscreen; very small buffer for WS2813 LED strip.
2 Layers PCB 10 x 16.5 mm FR-4, 1 mm, 1, HASL with lead, White Solder Mask, Black silkscreen; WS2813 buffer and repeater for long range serial transmission
2 Layers PCB 38 x 41 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen;
Ardufocus is the only OSS/OSH controller to support two independent focus motors, the high-resolution mode allows for stepwise sub-micron movements, multiple acceleration profiles, and it never forgets the focuser position between restarts.
2 Layers PCB 54.6 x 90.2 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen;
Driver for WS2812, SK6812 or similar LED strips controlled via Bluetooth LE. It supports RGB and WWA LEDs. The drive uses motion and light sensors so in automatic mode it can turn on the lights when it detects the presence of someone in the dark.
This circuit has everything you need to assemble a mClon-style robot, without the need to find the missing Arduino circuit from RobotDyn used in the ShieldClon version.
Components can be SMD or THT, except the boost circuit/lithium battery charge controller is SMD, the 1206 and 0805 components are larger than the usual 0603 and 0402). You can choose not to solder the boost smd component and just solder the Bat-Vcc selector on the bottom to use the power bank.
It's common for computer users to bend over in front of a screen, which can eventually lead to back problems. There are various gadgets on the market that solve this problem by constantly reminding users to sit up straight, but most of them are not fun. So I made a fun little tool for this problem.
Do you need a small ISP to program your onboard AVR device? POGO ISP Micro is the right solution!
This project started with a conversation with a friend and apparently how the LED based consoles that existed in the 70's have never been revisited
A small add-on board for the Raspberry Pi that I have designed specifically to solve the constant problem of shifting levels on sensors
The project is a cube shaped 10x10x10 LED matrix controlled by a serial interface.
2-layer PCB 8.89 x 19.05 mm FR-4, 0.8 mm, 1, soldered with leads, white solder mask, black silkscreen
Pocket calculator style general purpose programmable device (computer) ideal for learning programming and improving building/soldering skills.
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