This fully tested reference design demonstrates a low-power solution for electronic measurement of water flow with a mechanical flow meter and provides a single-chip platform for water flow measurement and wireless communications. The design is ideal for automatic water meter reading (AMR) modules, which add wireless communications capabilities to existing mechanical flow meters. The radio frequency subsystem supports standard protocols such as wireless M-Bus or proprietary protocols in the sub-1GHz ISM band. This reference design provides the ability to accurately read mechanical rotation over long distances and provides greater reliability. Ultra-low power consumption reduces battery requirements and extends product life.
Precision electronic scale design using 24-bit Σ-Δ ADC AD7791 and external zero-drift amplifier ADA4528-1
The TIDA-00743 reference design is a small module designed to evaluate a digital input Class D audio amplifier in a system dedicated to the classic Class AB audio power amplifier module. This design demonstrates the power loss reduction that a Class D amplifier can achieve. This design demonstrates how the 2.1MHz operation of the TAS6424-Q1 enables a compact power amplifier solution.
The efficiency and diagnostic capabilities required for automotive emergency call (eCall) systems create unique requirements for the audio subsystem, such as speaker diagnostics and low power consumption. This TI reference design shows how TI's automotive dual-channel audio codec (TLV320AIC3104-Q1) and Class D audio amplifier (TAS5411-Q1) can be used in eCall applications.
The MAX16974/MAX16975/MAX16976 high-performance DC-DC converters are standard buck controllers designed for automotive applications. This application note explains how to optimize the layout of these ICs. An example layout is provided at the end of the document.
This solution has the characteristics of low cost and low energy consumption. It uses 32 GPIOs to control an 8x8x8 LED matrix and uses the DMX512 communication interface to receive commands from the computer or DMX512 host, giving you a new experience through continuous transformation.
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
This freedom board covers MC12XSF and MC12XS6 families and ease its usage thanks to its quick evaluation tolls (Spigen or KDS) with different Kinetis MCU.
Using Raspberry Pi pico (rp2040) as logic analyzer and oscilloscope with sigrok
This reference design is an automotive-qualified isolated gate driver solution that drives silicon carbide (SiC) MOSFETs in a half-bridge configuration. This design provides two push-pull bias supplies for dual-channel isolated gate drivers, each providing +15V and –4V output voltages and 1W output power. The gate driver is capable of 4A peak source current and 6A peak sink current. The driver implements reinforced isolation and can withstand 8kV peak isolation voltage and 5.7kV RMS isolation voltage as well as common-mode transient immunity (CMTI) of over 100V/ns. This reference design includes a two-stage shutdown circuit that protects the MOSFET against voltage overshoot during short circuit conditions. DESAT detection threshold and second stage shutdown delay time are configurable. This design uses an ISO7721-Q1 digital isolator to connect the fault and reset signals. The overall design adopts a compact double-layer PCB board of 40mm × 40mm.
ST25R3911B based NFC reader expansion board for STM32 and STM8 Nucleo
This design is designed for foot posture. Wrong running posture can be corrected through real-time prompts on the mobile phone APP, thereby solving various adverse consequences caused by incorrect running posture.
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.
CR95HF/ST25R95 based NFC reader expansion board for STM32 Nucleo
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.
STM32 Nucleo-64 development board using STM32G431RB MCU, supports Arduino and ST morpho connection
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