Description:
For those that want to take their wireless control with them, this nRF24LE1-based key fob should do the trick! The board uses an nRF24LE1-24 to read the five available buttons and then transmit the status of the buttons over wireless. The nRF24LE1 goes into sleep mode while a button isn't being held, and only draws 2 uA. When a button is pressed, the device wakes up, transmits the button statuses and the total number of button presses over wireless. A CR2032 coin-cell battery is included, and should last for years.
Features:
Handheld, and can be attached to a keychain
Years of battery life
100+ foot range
On-air-compatible with receivers set up to use Sparkfun's Nordic Fob
Sends button status for both pressed and released changes, so the receiver can know if a button is being held down
Documentation/Software:
nRF24LE1 Datasheet
Schematic
Included firmware
Example receiver firmware for nRF24LE1 devices
nRF24LE1 SDK for use with SDCC (required for compiling code above)
Board does not include a bootloader, but it can be programmed over the hardware SPI flash interface using this code with another nRF24LE1 device. See this forum post for how to connect the devices.
This product was added to our catalog on Thursday 23 August, 2012.
