i.MX RT1060 Evaluation Kit

i.MX RT1060 EVK is a 4-layer through-hole USB powered PCB. At its core is the i.MX RT1060 crossover MCU, implemented using NXP's advanced Arm® Cortex®-M7 core. This core runs at speeds up to 600 MHz to provide high CPU performance and excellent real-time response. Support for FreeRTOS™ is provided in the MCUXpresso SDK. Zephyr™ OS supports the i.MX RT1060 evaluation kit for developing IoT with a free, open source embedded operating system. 

Schematic PCB

OM13087: LPCXpresso board for LPC1115 with CMSIS DAP hardware debugger

The board consists of the LPC1115 target device and the onboard CMSIS-DAP hardware debugger. The onboard hardware debugger is compatible with LPCXpresso IDE (version 7.9 and above) and other tool chains that support the CMSIS-DAP protocol. The board also features a standard 10-pin header that supports 3rd party hardware debuggers, with onboard or external hardware debuggers easily selectable via jumpers. The board is supported by a set of optimized drivers and example projects.

Schematic PCB

45W 19V Adapter Reference Board with 700V CoolMOS™P7 Superjunction MOSFET in SOT-223 Package

This 45W adapter reference board is designed to be a form, fit and functional test platform for low-cost charger applications to demonstrate the state-of-the-art 700V CoolMOS™ P7 Super Junction (SJ) MOSFETIPN70R600P7S in SOT-223 packaging. The reference adapter board is designed to fit into an extremely small form factor while featuring high efficiency, low standby power and various protection modes to achieve a highly reliable system. The board passes EMI (conducted and radiated), ESD immunity and surge testing and is ready for production after final verification by the customer with a small number of changes.

stc15w4k58W plays WAV files

stc15w4k58W plays WAV files

Schematic PCB

OM23221ARD: NTAG ^I2C + Kit for ^Arduino® Pinout

NXP's NTAG I²C+ kit works with any Arduino header-compatible board, including LPCXpresso, Kinetis and i.MX boards. The purpose of this kit is to simulate the use of NTAG I2C tag chips in embedded electronic systems.

RDR-813 - 27W USB PD 3.0 with 3.3 V-11 V PPS power supply, using InnoSwitch3-Pro and VIA Labs VP302 controller (single board design)

27 W USB PD 3.0 with PPS charger (5 V/3 A; 9 V/3 A; 3.3 V-11 V PPS outputs) using InnoSwitch3-Pro (INN3366C-H301) and VIA Labs VP302 USB PD controller, single-board design

Schematic PCB

OM13090: LPC54114 Audio and Speech Recognition Kit

LPC54114 Audio and Speech Recognition Kit

25W-500W scalable output power Class D audio power amplifier reference design

25W-500W scalable output power Class D audio power amplifier reference design. Using IRS2092 protected digital audio driver

Schematic PCB

Smart card interface evaluation board based on ST8034P

Smart card interface evaluation board based on ST8034P

Schematic PCB

MCIMX51EVKJ: i.MX51 Evaluation Kit

FRDM-KV11Z: Freedom development platform for the Kinetis ^® KV1x family of 128 KB, 64 KB, 32 KB and 16 KB Flash MCUs

Freedom Development Platform for Kinetis ^® KV1x Family of 128 KB, 64 KB, 32 KB and 16 KB Flash MCUs

Schematic PCB

LNB power supply evaluation board based on LNBH25LS

LNB power supply evaluation board based on LNBH25LS

Schematic PCB

51 microcontroller countdown 120 seconds C program

51 microcontroller countdown 120 seconds C program

Schematic PCB

RDR-805 - 100 W USB PD 3.0, 3.3 V-21 V PPS power supply based on InnoSwitch3-Pro and VIA Labs VP302 controller

Schematic PCB

Portable information board

"Portable information board", as the name suggests, displays the information you want to display on a device (screen) that you carry with you. The inspiration for this idea was that I met many elderly people who were lost before, but some of them were too old, had poor memory, forgot where their home was, couldn’t find their family members’ phone numbers, etc. (Although there are only a few, they are still exists, and China’s population is aging increasingly, so the proportion will inevitably increase).

Schematic PCB

PD85004 based 4 W/860-960 MHz evaluation board

PD85004-Based 4 W/860 - 960 MHz Evaluation Board

Schematic PCB

A smart watch design with all open source software and hardware

Hardware configuration: Dialog Semiconductor DA14683 for master control, with BLE5.0

Schematic PCB

555 timer: 4MHz (80 meter band) CW transmitter

Might not be an actual working transmitter, but it does produce a few mW of RF power at 4 MHz using only two LMC555s.
Principle of Operation (see attached simplified schematic):
At lower operating voltages, the flip-flop (TR) input of the LMC555 can be used as an inverting comparator input to control the output of the device. This requires the Threshold (TH) input to be active (high). This circuit applies a DC bias at the switching threshold of TR and superimposes a small AC feedback signal to create an oscillator. An inverted version of the same signal is applied to the second LMC555 to produce two complementary open collector outputs (the device's discharge output). The output is then connected as a standard push-pull RF amplifier. The TH input is used as the enable input to key the transmitter.

Schematic PCB

LPC845-BRK: LPC845 breakout board for LPC84x series MCUs

The LPCXpresso845 breakout board is an ultra-low-cost development board for evaluation and prototyping using the LPC84x series MCUs.

Schematic PCB

Smart home appliances - support video playback function

Built-in Linux operating system, with H.264 video decompression function, can provide smooth video playback, support pause, shuttle fixed-point and other playback functions. Used for machine operation guidance and recipe teaching. You can easily connect to Wi-Fi through USB so that home appliances can also be connected to the Internet.