Design based on STM32 imitation Mitsubishi PLC (program + circuit diagram)

Based on STM32 imitation Mitsubishi PLC design, including program and circuit diagram

Schematic PCB

OM7864: BGA3018 Demonstration Board, 5 MHz to 300 MHz 18 dB Gain Inverting Amplifier Application

Schematic PCB

FRDM-KL26Z: Freedom Development Platform for Kinetis ^{® KL16 and KL26 MCUs (up to 128 KB Flash)}

Freedom KL26Z is an ultra-low-cost development platform for Kinetis L-series KL16 and KL26 MCUs based on Arm ^® Cortex ^® -M0+ processors.

Schematic PCB

KITFS4503CAEEVM: FS4503, System Basis Chip, Linear 0.5A Vcore, FS1b, LDT, CAN

Schematic PCB

CN0174

Low-Noise 12 GHz Microwave Fractional-N Phase-Locked Loop (PLL) Using Active Loop Filter and RF Prescaler

Schematic PCB

Lite3DP 3D Printer: Arduino-based open source MSLA / LCD-SLA resin micro 3D printer kit (schematic, PCB, source code, etc.)

Lite3DP is a micro 3D printer that uses high print quality, virtually silent MSLA technology. It is the first of its kind to be completely Arduino-based, is open source, and comes in an easy-to-assemble kit format. It is a simple machine designed for experimentation to provide an in-depth and complete understanding of its operation. It can be placed on almost any table or in any workshop. MSLA resin 3D printing technology can achieve stunning levels of detail and surface finishes that are far superior to what can be achieved with filament 3D printers – primarily by using screen-cured resins such as LCDs on Lite3DP. Although 3D printers with MSLA technology are already available at similar prices to filament printers, they are closed-source projects that eschew one of the most valuable features of modern 3D printing - accessibility.

Schematic PCB

KL46Z Magnetic Rotary Encoder Reference Design

Magnetic rotary encoder for angle measurement with contact-free knob

TJA1100HN 100BASE-T1 Automotive Ethernet PHY - Customer Evaluation Board

The OM14500/TJA1100 is designed for rapid evaluation of the TJA1100HN PHY. It has direct access to MDI and MII/RMII interfaces and chip configuration bits

Schematic PCB

OM15020: JN5169 USB Dongle for ZigBee

MAXREFDES1221: Boost single-output, 2.6V to 4.5V input, 12V/833mA output DC-DC converter using MAX669

This reference design boosts a single-cell battery voltage to a 10W output using the MAX669 controller in the bootstrapped mode.

Schematic PCB

NOVATO (MAXREFDES16#): 4-20mA loop powered temperature sensor with HART function

The Novato reference design (MAXREFDES16#) is a 16-bit, high-accuracy, loop-powered temperature transducer that transmits temperature information from a remote object to the central control unit over a 4–20mA current loop and using the highway addressable remote transducer (HART) communication protocol.

Schematic PCB

PEmicro Cyclone FX Programmer

Schematic PCB

Breadboard without jumpers: Based on Raspberry Pi Pico, analog switch matrix replaces jumpers

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.

Schematic PCB

Design of temperature acquisition and alarm system based on STM32 (source program, schematic PCB, etc.)

When the temperature is lower than the set threshold, the corresponding indicator light lights up and the corresponding relay is closed. The relay can drive the load (fan, refrigeration plate, heating tube, etc.). When the temperature is higher than the alarm value, the sound and light alarm will sound. The keys are setting keys, plus key and minus key. The alarm value and temperature control range can be set, the temperature measurement range is 0 to 99.9 degrees Celsius, and the accuracy is 0.1 degrees Celsius.

Schematic PCB

REP020: Dual-band dual-mode FE IC operating at universal 210MHz IF

This reference design (RD) is for a dual-band, dual-mode CDMA front-end that uses a CDMA LNA/mixer, the MAX2323. The RD retunes the FM analog and the cellular/PCS digital mixers to 210MHz IF. This CDMA low-noise amplifier is also useful for TDMA, GSM, EDGE, and WCDMA applications. Schematics and bill of materials are shown.

Schematic PCB

CN0290

Extending the low-frequency range of high-performance phase-locked loops

Schematic PCB

MAXREFDES27#: IO-LINK proximity detection light sensor

Maxim's MAXREFDES27# reference design is a tiny, low-power IO-Link ^® optical proximity sensor compliant with IEC 61131-9. It contains an infrared (IR) receiver, matching IR LED driver, IO-Link transceiver, and efficient step-down converter. The entire design fits on an 8.2mm x 31.5mm printed circuit (PC) board.

Schematic PCB

FRDM33771BTPLEVB: MC33771 evaluation board with isolated daisy chain communication

Distributed greenhouse management system based on stm32

This design mainly explains the circuit and software design of the node equipment, coordinator equipment and gateway equipment in the greenhouse, completes the front-end and back-end interaction between the web page and the WeChat applet, and completes the data transmission test and communication distance test.

Schematic PCB

WiBro reference design built with the MAX2837

The WiBro™ reference design is a complete RF front-end solution designed to meet requirements for the WiBro 2.3GHz to 2.4GHz mobile WMAN (Wireless Metropolitan Area Network) standard. This reference design uses the MAX2837 direct-conversion transceiver and demonstrates a complete WiBro single-band RF-to-baseband solution. It serves as a platform for designs in multiple form factors such as CardBus, miniPCI, and custom CPE modules. The design can be easily adapted for WiBro-only 3.3V laptop applications, or WiBro- only 5.0V CPE applications.