HM-12 4.0 Dual mode bluetooth module , BLE SPP LE serial port , V4.0 EDR + BLE dual mode

HM-12 4.0 Dual mode bluetooth module , BLE SPP LE serial port , V4.0 EDR + BLE dual mode HM-12 is Bluetooth V4.0 BLE version. Use TI Chip. BT Version: Bluetooth Specification V4.0 EDR and BLE Send and receive maximum byte count is 90 bytes. Working frequency: 2.4GHz ISM band Modulation method: GFSK(Gaussian Frequency Shift Read more about HM-12 4.0 Dual mode bluetooth module , BLE SPP LE serial port , V4.0 EDR + BLE dual mode[…]

External Cable JSN-SR04T – DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor Module

Waterproof Ultrasonic Module JSN-SR04T Water Proof Integrated Distance Measuring Transducer Sensor for Arduino External Cable JSN-SR04T – DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor Module There are many ultrasonic ranger module on the market, but sometimes, these kind of sensor needs to work in conditions more than the Lab. This water proof ultrasonic Read more about External Cable JSN-SR04T – DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor Module[…]

DOIT ESP32 Development Board WiFi+Bluetooth Ultra-Low Power Consumption Dual Core ESP-32 ESP-32S ESP 32 Similar ESP8266

DOIT ESP32 Development Board WiFi+Bluetooth Ultra-Low Power Consumption Dual Core ESP-32 ESP-32S ESP 32 Similar ESP8266 ESP32 is integrated with antenna and RF balun, power amplifier, low-noise amplifiers, filters,  and power management module. The entire solution takes up the least amount of printed circuit board area. This board is used with 2.4 GHz dual-mode Wi-Fi and Read more about DOIT ESP32 Development Board WiFi+Bluetooth Ultra-Low Power Consumption Dual Core ESP-32 ESP-32S ESP 32 Similar ESP8266[…]

DC 6V-40V To 5V 3A Double USB Charger DC-DC Step-down Converter Module

DC 6V-40V To 5V 3A Double USB Charger DC-DC Step-down Converter Module Description: Short circuit protection DIY Mobile Power Supply, 5V output for charging Phone, MP3, MP4, , etc Specifications: Input voltage: 6V-40V Output voltage: 5V Output current: 3A Switching frequency: 150KHZ Conversion efficiency: 92% Working temperature: -40 to +85 degree Centigrade Color: Red Size: Read more about DC 6V-40V To 5V 3A Double USB Charger DC-DC Step-down Converter Module[…]

AC 220V 4000W SCR Electric Voltage Speed Controller Regulator Switch Module, AC 220V 4000W SCR Voltage Regulator Dimming

AC 220V 4000W SCR Electric Voltage Speed Controller Regulator Switch Module, AC 220V 4000W SCR Voltage Regulator Dimming Feature:   Material: plastic and metal. Color: show as the picture. Input voltage: AC 220V. Output power: Max 4000W. Adjustable voltage: 60-220V AC. Connect this device with lamp or home appliance in a series connection, then rotate Read more about AC 220V 4000W SCR Electric Voltage Speed Controller Regulator Switch Module, AC 220V 4000W SCR Voltage Regulator Dimming[…]