4D product information for
Power Control, Real Time Clock & Temperature sensor module for the Raspberry Pi
- Product Title: Power Control, Real Time Clock & Temperature sensor module for the Raspberry Pi
- Manufacturer/Publisher: Fourth Dimension
- Stock Code: 4D-RaspberryPi-PowerControl-RealTimeClock-Temp-RTCT
- QuickCode: 17644
- Format: Hardware
- Product Group: Raspberry Pi: Cases & Fixings inc. MiniITX
- Condition: New
- Availability: Usually available from stock
Power Control, Real Time Clock & Temperature Sensor Module for the Raspberry Pi.
Two on/off inputs
Three on/off outputs
On board PIC controlled via I2C (specification here.)
Connect the on board PICs power input to an always on power e.g. an Pico, MiniITX or ATX's 'standby power' and then connect a momentary or latching On/Off switch to the board for power control like on a standard PC.
Support for 'Soft Off'
Reset button support for Rev1 & Rev 2 Raspberry Pi's
Force off option.
Front miniITX/ATX case Power-On LED support
Front miniITX/ATX case Filing system access (eg. HDD) One/Three colour LED support
 Soft Off support is coming soon to RISC OS on the Raspberry Pi. We are looking for a Linux programmer to help implement Debian support. If interested please email firstname.lastname@example.org
 Filing system access LED support available NOW for RISC OS on the Raspberry Pi.
Including option for red LED for Write and green LED flashes for Read if a two colour LED is connected. We are looking for a Linux programmer to help implement Debian support. If interested please email email@example.com
Battery backed up Real Time Clock card and Temperature Sensor also included.
Physical installation: Plugs into the GPIO pins. Fits within the footprint of the Raspberry Pi's PCB and is lower than the USB sockets so should fit into almost any case. Full fitting instructions are on our main website.
Real Time Clock chip: Maxim DS1338
Temperature Sensor: MCP9801 (LM75 compatible)
Cell (Battery): CR1620
Crystal Accuracy: 20ppm (better than 1 minute a month)
Battery Capacity: Over nine years!
Real Time Clock Module with Temperature Sensor
CR1620 Battery (unfitted)
Raspbian "wheezy" now supports the Real Time Clock (see fitting instructions above for how to enable this).
The official RISC OS downloads include Real Time Clock support now!
We are current searching for Linux software for the temperature sensor, the MCP9801 is a commonly used chip that is software compatible with many other I2C temperature sensors. The temperature sensor hardware has been tested using RISC OS, and RISC OS software can be downloaded here.
Further information to come!
Postage (By AIR):
UK: Included in the price
Rest of the World: £3.90
Additional RTCs no extra cost. e.g. Postage on two or more to Europe is £2.90
The extra postage will not show up when you 'check out', we will add it to the total when the order is processed!
- Price: £19.00 no VAT to pay!
- Free UK delivery on orders of £10 or more! (exceptions apply)
Over 30 years experience
Most orders of less than £10 will incur a £3 admin charge.
Items on special offer are while stocks last and may be time limited.
Items marked S/H are secondhand and have a 3 month warranty
Unless otherwise stated, photos are for illustrative purposes only
UK delivery included on orders of £10 or more (exceptions apply), please ask for overseas delivery cost.
Please check for compatibility. Official orders welcome. E&OE
If you have a sales enquiry please email our sales department
Unit 16, Arunside Ind. Est., Fort Road, Littlehampton, West Sussex, BN17 7QU, UK. 01903 523222 (full contact details)
If you have any comments or problems please email firstname.lastname@example.org
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Last updated: Fri, 25 Sep 2020