NodeMcu v3 WiFi Module 2.4GHz with ESP8266, CH340 and USB port

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Item Number

NODEMCU

Item Condition

New

Price

£6.50 (inc VAT £7.80)

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40 Female to Female Jumper Cables on rainbow ribbon cable

Solderless Female to Female Jumper Leads in a set of 40

This set of coloured female to female jumper leads can be used together or peeled apart into smaller sets or single leads. They are great for prototyping with boards like Arduinos and Raspberry Pi.

With 10 different colours and 4 of each colour, it's easy to keep track for quick fault finding.

Colours: Red, Orange, Yellow, Green, Blue, Grey, Purple, Brown, Black and White

Length: 200mm

JL40F

£3.25

4 way 5V relay module for Arduino

5V relay module for Arduino and other microcontroller projects

This module has 4 x 5V changover relays with the option of using them through optocouplers. There is an LED for each relay to indicate when it has been activated.

The relay allows the low current microprocessor outputs to switch higher currents and voltages. With the optocouplers it fully isolates the live side of the relays from your microprocessor, this will require a seperate 5V supply to power the relays.

Trigger voltage : 5VDC

Supply Voltage : 5VDC (only needed if using optoisolators)

AC Switch ratings : 250V 10A

DC Switch ratings : 30V 10A

Size 73x52mm

RM4

£5.50

MQ2 Combustible Gas & Smoke Sensor

Combustible gas and smoke sensor module for Arduino and other microcontroller projects

This module has a sensitive gas sensor that can measure smoke and various combustible gases. It can measure compunds such as LPG, Propane, Methane and smoke. The sensor outputs a varying voltage on the analogue pin depending on the level of gases present and it has a comparator to give you a digital output when the level of combustible gases reaches a certain level. This can be set with the built-in potentiometer.

Please note, this sensor needs to warm up for a couple of minutes before it will give a stable reading.

Voltage : 5VDC

Current : 150mA

Sensitivity : 300 to 10000ppm

Size 32x21mm

MQ2

£3.50

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2.4GHz WiFi NodeMcu IoT Development board for Arduino and other IOT projects

This module uses the popular ESP8266 microchip with full function WiFi as well as its own microcontroller.

It employs the CH340 USB to Serial converter.

This module can be used to add WiFi to your microntroller project. Can be programmed directly from the Arduino IDE to work independently.

Voltage : 5VDC

Frequency : 2.4GHz

Wireless Standard : 802.11 b/g/n

Dimensions : 57mm x 30mm

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