Pulse electronic blood pressure monitor based on STM32 (schematic + program)

Pulse electronic blood pressure monitor based on STM32 (schematic + program)

Schematic PCB

Principle and design analysis of four-wing ornithopter (bionic bird) (including open source code)

This video records the entire process of the author and his team building a low-cost ornithopter. The video explains in detail the mechanical structure design, power transmission, wing flapping angle control, electronic system design and selection of the ornithopter. At the same time, the author has open sourced all design-related schematics, PCB, source code and other materials for reference by interested enthusiasts.

Schematic PCB

Xenon lamp ballast

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.

Schematic PCB

LPCXpresso43S67 development board

The LPCXpresso family provides a powerful and flexible development system for NXP Cortex-M microcontrollers. The LPCXpresso43S67 board was developed by NXP to enable evaluation and prototyping of the LPC4300 series MCUs, featuring the LPC43S67 in a 100-pin BGA package. LPCXpresso™ is a low-cost development platform provided by NXP that supports NXP's Arm-based microcontrollers. The platform includes a simplified Eclipse-based IDE and low-cost target boards with a JTAG debugger. LPCXpresso is an end-to-end solution that supports embedded engineers developing applications from initial evaluation to final production.

Schematic PCB

Evaluation board for NXP MPC563xM

The XPC563M EVB is an evaluation system supporting the NXP MPC563xM microprocessor. In addition to an XPC56xxMB motherboard, the complete system also has an XPC563MADPT micro module that can be plugged into the motherboard. There are also different sub-circuit boards available for you to choose from for evaluating devices with different specifications in the MPC563xM series microprocessors.

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BGU7031 Evaluation Board for Set Top Box Low Noise Amplifier

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BGA3012 Demonstration Board, 5 MHz to 300 MHz 12 dB Gain Inverting Amplifier Application

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BGA3012 Demonstration Board, 40 MHz to 1006 MHz Push-Pull Amplifier Application

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Low Noise Amplifier Evaluation Board with BGU7003 for 2.4 GHz ISM/WLAN

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Low noise amplifier evaluation board using the BGU7003 matched to the 868 MHz ISM band

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GNSS/GPS low-noise amplifier front-end evaluation board using BGU8007

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BGU8010 GNSS LNA Evaluation Board

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BGU7045 evaluation board for set-top box low noise amplifier with bypass function

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BGU7044 Evaluation Board for Set Top Box Low Noise Amplifier

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BGU7042 Evaluation Board for Set-Top Box Low Noise Amplifiers with Bypass

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BGU7033 evaluation board for set-top box low noise amplifier with programmable gain and bypass functionality

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BGU7032 evaluation board for set-top box low noise amplifier with bypass function

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BGU6102 Demonstration Board, 50 Ω FM Low Noise Amplifier, Embedded Antenna for Portable Applications

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MAC57D5xx Evaluation Board Platform

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LPC54114 Audio and Speech Recognition Kit

The LPC54114 Audio and Speech Recognition Kit provides developers with a complete hardware and software platform for evaluation and prototyping of the LPC54114 family of processors. Developed by NXP, this product gives you everything you need to develop low-power, always-on voice wake-up products. LPCXpresso™ is a low-cost development platform provided by NXP that supports NXP's Arm-based microcontrollers. The platform includes a simplified Eclipse-based IDE and low-cost target boards with a JTAG debugger. LPCXpresso is an end-to-end solution that supports embedded engineers through every step of application development, from initial evaluation to final production.

Schematic PCB