Isolated Polyphase IIoT Energy Meter with ESP32-S3-WROOM-2-N32R16V & ADE9000 | UART Programming Pads | 100 nF Per-VDD Decoupling + 10 µF Bulk on 3.3 V Rail | Defined RF Antenna Keepout | USB-C UFP 5 V Input with eFuse | Maintained HV/LV Isolation

Smart Wellhead Controller V1.1: ESP32 + LoRa Industrial IoT Node with Solar Power, Deep-Sleep Leak Sensing, and OLED HMI. Now upgraded with a solar charging and battery management stage featuring a TP4056/CN3791 charger IC, power-path switching, Li-ion battery protection, and integrated 3.3 V rail supply. #PowerBlock #SolarCharging #BMS

USB-C Powered Arduino Nano ESP32 Soil Monitor with Protected 5 V Rail, Integrated eFuse (OVP/UVLO), 3.3 V Synchronous Buck, SPI Level Shifting, and Optimized 4-Layer Layout

230 VAC to Dual Isolated 5 V / 3.3 V DC Power Supply with Input Protection and EMI Filtering

12 V to 3.3 V, 1 A Buck-Regulated Power Delivery Integration

Bornera arduino nano con 3.3 a 5v

A Buck-Boost converter that can be powered from a Li-ion battery and output 3.3 V @ 500 mA. Powered by the TPS63051YFFR and in the same package as a standard Adafruit buck converter. Input voltage range: 2.5 V to 5.5 V

This board was developed for applications and installations where space is premium and projects are made as permanent set ups. Small, available in 3.3 V and 5 V versions, powered by ATmega328P.

conectar esto componentes • 1 temporizador 555 (IC1) • 2 circuitos integrados CMOS 4026B – Contador de décadas y decodificador a 7 segmentos (IC2, IC3) • 2 display 7 de segmentos cátodo común (DS1, DS2) • 3 condensadores cerámicos de 0.047 uF (microfaradios) (C1, C2, C3) • 1 resistencia de 10 K, 1/4 W (R1) • 1 resistencia de 1 M, 1/4 W (R2) • 1 resistencia de 33 K, 1/4 W (R3) • 2 interruptores normalmente abierto (NA) de contacto momentáneo. (SW1, SW2).

The NTMFS4C024N is a high-performance N-Channel MOSFET manufactured by ON Semiconductor, designed for power applications such as CPU power delivery and DC-DC converters. This single MOSFET, housed in a SO-8 FL package, boasts a maximum drain-to-source voltage (VDSS) of 30 V and can handle continuous drain currents up to 78 A at 25°C. It features exceptionally low RDS(on) values of 2.8 mΩ at 10 V and 4.0 mΩ at 4.5 V, which minimizes conduction losses. Additionally, the device is optimized for low gate charge and capacitance to reduce driver and switching losses, enhancing overall efficiency. The NTMFS4C024N is Pb-Free, Halogen Free/BFR Free, and RoHS compliant, ensuring it meets modern environmental standards. With a maximum power dissipation of 33 W and thermal resistance junction-to-case of 3.8°C/W, it is well-suited for high-power applications requiring robust thermal performance.

Fault detector circuit for streetlight using arduino nano 33 IOT . V1