Let's get technical... or do we?


Our Programmable Switches are made simple and easy to install. Using a variety of programs and interfaces, including Serial Peripheral Interface (SPI) and Inter-Integrated Circuit (I2C).

What is a Serial Peripheral Interface?

Serial Peripheral Interface (SPI) is a serial communication interface specification used to send data between microcontrollers and small peripherals, often used in embedded systems. This means data can be streamed continuously with no interruption and with separate MISO and MOSI lines, data can be sent and received simultaneously.

What is an Inter-Integrated Circuit?

Inter-Integrated Circuit (I2C) is a protocol to allow multiple “peripheral” digital integrated circuits, known as ‘chips’ to communicate with one or multiple controller chips. Similar to SPI, this is used for short-distance communications. I2C only requires two signal wires to exchange information.

Featured Products

See below, for a selection of our programmable components.

LED illuminated serial-interfaced navigation module – microprocessors with up to 9 keys.

Key Features

• ⌀66mm Panel cut out
• Microprocessors up to 9 keys
SPI interfaced
• Blue LED Illumination
• IP65 rated (front)

RJS-SLC, programmable switch, push button, lcd display, rjs electronics ltd

Smooth & silent push button switch with a 0.42” high-resolution mono OLED display.

Key Features:

I2C Interface
• 0.42” High-resolution OLED Display
• 72*40 pixels OLED module
• Smooth and Silent Push Button Switch

Navigation switch, rotary encoder, push-button with LCD display, RJS-SDE, rjs electronics ltd

Multi-purpose low profile LCD encoder switch with full colour programmable TFT screen. Supports Raspberry Pi for easy programming!

Key Features:

• Low Profile Switch 0.5mm +/-0.3mm
• Includes an LCD, Rotary Encoder and Push Button
• IP65 rated (front)

At RJS, we supply an extensive range of Electromechanical components to an array of industries.
Programmable switches not right for you? Visit our product page here, and explore our other product categories!

Interested in our products? Speak to us today!

How to place an order?

We operate Monday – Thursday (8 am – 5 pm) and Fridays (8 am – 4.30 pm)

 Call us on +44 (0) 1234 213600 to speak to our Sales Engineers or e-mail us

 on [email protected] alternatively, leave us a message using our online contact form.

View our full product range here  | Download our recent product catalogue

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