4D product information for

Battery backed Real Time Clock (RTC) for PandaBoard & flying Reset switch

Image of Battery backed Real Time Clock (RTC) for PandaBoard & flying Reset switch
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Product Title: Battery backed Real Time Clock (RTC) for PandaBoard & flying Reset switch
Manufacturer/Publisher: 4D
Stock Code: 4D-PANDA-RTC-RST
QuickCode: 18044
Format: Hardware
Product Group: Pandaboard, Titanium & IGEPv5 systems & Accessories
Condition: New
Availability: Usually available from stock

A plug-in battery backed-up Real Time Clock module with temperature sensor for the PandaBoard & Pandaboard ES.

Real Time Clock chip: Maxim DS1338
Temperature Sensor: MCP9801 (LM75 compatible)
Cell (Battery): CR1220
Crystal Accuracy: 20ppm (better than 1 minute a month)
Battery Capacity: Approximately five years.
Suitable for original PandaBoard & PandaBoard ES.
PCB Plugs into 'Expansion connector A'
Reset Switch is on a flying lead.

Real Time Clock Module with Temperature Sensor
CR1220 Battery (unfitted)
Fitting Instructions

Linux Software:
The standard DS1307 RTC driver will work with the module

RISC OS support:
RISC OS support for the RTC is built in.
Software to read from the temperature sensor is available from our website here

NB. This plugs onto "Expansion Connector A", which will need to be fitted to your PandaBoard. If you don't have this fitted, you can purchase a set of pins to solder in here.

Trade and volume enquiries welcome.

More information:
The RTC board has been designed so that as much of the expansion header is available as possible with a mixture of direct accessibility and pass through.

The board plugs into pins 1-6 and 23-28
Pins 7-22 can be accessed by plugging in connectors of the type reset switches normally use.
The pass through/ancillary connector (J3) on our board has:
2 SDA (level shifted to 5V)
3 SCL (level shifted to 5V)
4 5V
5 SQW/OUT from clock (DS1338) at 5V level
6 ALERT from temperature sensor (MCP9801) at 5v level
7 Pin 3 (GPMC_AD7/SDMMC2_DAT7) via a 150R/Q1 for possible filing system activity LED (active low)
8 5V for GPIO LED if in use

We have fitted the board inside a Tigal case and being 1.1" high it is no higher than the USB/Network socket so should also fit other cases including Special Computing's acrylic case.

Price: £49.00 no VAT to pay!
Free UK delivery on orders of £10 or more! (exceptions apply)

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Selling to the Acorn/RISC OS market for over 30 years!

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)
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Last updated: Fri, 07 Aug 2020