This reference design is a 12Gbps low-cost bit error tester (BERT) that generates and checks up to 8 channels of pseudo-random binary sequences (PRBS). This proven design provides a convenient way to generate multi-lane high-speed serial bit streams up to 12Gbps and inspect the incoming serial bit stream for bit errors. This design can be used as a handheld BERT to evaluate the signal integrity and bit error performance of high-speed subsystems.
This reference design allows a digitally programmable power supply to power a continuous wave (CW) mode ultrasound transmitter circuit via a 24V bus. There are two adjustable outputs (±2.5 to ±12V) under user software control. These outputs provide positive and negative regulator outputs up to 2A with very low ripple and noise. By adding more regulators in parallel, the power supply can be scaled to provide higher output currents up to 3A. The power supply can also be synchronized to an external clock.
The incense machine control board is based on GD32E231 as the main control, using timers and PWM to control the running time and intensity of the DC pump. The 4-phase 5-wire stepper motor is ideal for lifting and lowering perfume bottle replacement and installation. The display uses the commonly used ST7567 main control 12864 display screen, which can intuitively display the working status of the incense machine.
S32K144 Evaluation Board
The MTP (modular telematics platform) provides an open development environment for prototyping smart driving applications, including vehicle connectivity to cloud services, to infrastructure and to other vehicles.
PocketSprite is more than just a small gaming device that clips to your keychain, it's an open source, powerful and mature hardware development platform.
Quark based on ESP32 is an open source electronic tool that integrates electronic measurement probes and debugging tools. It has a wireless connection function and can be connected to APP.
There is a risk of electric shock and fire with this project! Light bulbs are essential devices in our lives. Incandescent and fluorescent light bulbs are typical light bulbs for household lighting fixtures. For industrial and public purposes such as street lighting, large indoor lighting, sports field lighting and any outdoor activities, apart from these bulbs, HID (High Intensity Discharge) lamps are also widely used. Typical HID lamps used for this purpose are high pressure sodium, metal halide, and mercury lamps. The last one has been banned in 2021 by the Minamata Convention on Mercury. Fixtures with incandescent and fluorescent bulbs, long used for home lighting, became obsolete within 10 years of the widespread adoption of LED lights, and currently offer only replacement bulbs. Low-wattage HID lamps are also gradually being replaced by LED lamps. High-wattage HID lamps still dominate the mainstream of large-scale lighting because the advantages of LED lamps at this level are smaller. Like many LED geeks, I built an LED fixture because it was rare, but when it became commonplace it stopped being fun. On the other hand, my nostalgia for the disappearance of glass tubes from our lives increased and I started collecting HID lamps as a light bulb geek. However, having only light bulbs makes no sense. In order to light a HID lamp, a lamp ballast rated for each bulb is required. Therefore, I designed and built an electronic HID ballast that can light a variety of HID lamps.
This document explains how the Corona (MAXREFDES12#) subsystem reference design provides a compact and simple isolated digital input interface for industrial control and automation applications. Hardware and firmware design files are provided.
Bluetooth low energy expansion board based on the BlueNRG-M0 module for STM32 Nucleo
This is an original work by netizen jiezhi320 who participated in the RT-Thread application competition. In 2015, jiezhi320 made a version of hardware based on stm32f405rgt6. However, due to the high CPU usage of the UKF algorithm, the author migrated it to imx-rt1052, in order to leave enough resources for everyone to develop in-depth for model friends.
If you are away from home for a long time on a business trip, the goldfish at home will starve. Therefore, in order to prevent goldfish from starving when the owner is not at home, an automatic feeding robot was designed based on a 4-degree-of-freedom robotic arm and GD32E231. GD32E231 controls the robotic arm by generating PWM. At the same time, it picks up fish food from a fixed place and puts it into the fish tank according to the preset time. Through multiple manual trainings, the robotic arm automatically calculates the feeding based on the manual training data. eating position. At the same time, you can also add some auxiliary functions. You can roughly obtain the internal temperature of GD32E231 and the lighting conditions around the fish tank through the serial port or onboard ADC and photoresistor. You can turn on lighting equipment such as desk lamps when it is dark.
The network card driver and LWIP protocol transplant program source code for the Ethernet communication module based on LPC2138 and DM9000AE written by myself.
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