June 15, 2025
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Barebones Components Computers & Accessories

CentIoT – RTC I2C module – DS1307 AT24C32 Real Time Clock Module – without battery

Price: (as of – Details) Battery not included. DS1307 I2C real time clock chip (RTC) 24C32 32K I2C EEPROM memory Using LIR2032 rechargeable lithium battery and charging circuit with DS1307 with battery backup can not solve the problem of literacy . Fully charged, can provide DS1307 timing 1 year. Compact design , 27mm * 28mm

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Barebones Components Computers & Accessories

40 Pin Red GPIO Extension Board for Raspberry Pi

Price: (as of – Details) Description: 40 Pin Red GPIO Extension Board for Raspberry Pi which designed for the Raspberry Pi B+ / A+ / Pi 2 that can break out all the power, GPIO, I2C and SPI pins from the 40pin header onto a solderless breadboard. Can plug the 40pin GPIO Ribbon Cable between

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Barebones Components Computers & Accessories

REES52 ESP8266 ESP-01 4 Channel 5V WiFi Relay Module 5V IOT Wireless Smart Home Device WiFi Relay Internet of Things ESP-01 Module Board for Phone APP Remote Control

Price: (as of – Details) This WiFi relay module carries an ESP8266 WiFi module and microcontroller. It will send the serial port instructions to the cell phone APP and Implementation within the local area network (LAN) for wireless control relay. Features: Transmission distance: In an open environment, the maximum stable transmission distance is 100M when

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Barebones Components Computers & Accessories

xcluma DC 5V 4 Channel Relay Module USB Control Computer Control Switch/PC/PLC control board

Price: (as of – Details) Description: It is a 4 Channel USB Switch Controller. Board power sockets and terminals, two power access methods are convenient and flexible. After the power is connected, even if the computer is turned off or the USB is unplugged from the computer, the relay can also remain set. Feature: PC

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Barebones Components Computers & Accessories

Raspberry Pi 4 Computer, Model B, 4GB RAM

Price: (as of – Details) Raspberry Pi 4 Model B is the latest product in the popular Raspberry Pi range of computers. It offers ground-breaking increases in processor speed, multimedia performance, memory and connectivity compared to the prior-generation Raspberry Pi 3 Model B+, while retaining backwards compatibility and similar power consumption. For the end user,

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