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Transceiver nRF2401A with Trace Antenna
sku: WRL-00151
Description: We have found a new supplier for this device. We recommend the SparkFun nRF2401A module as a replacement for the RF-24G if needed. Same IC, same commands, the difference is the MiRF v1 has a 0.1" connector.
2.4GHz transceiver modules with built in antenna designed around the Nordic Semiconductor nRF2401. These are the latest gems from Laipac Tech. They incorporate a buffer that is loaded at any clock speed, once the transmit bit is set, all data is shot towards the receiving module at 1 million bits per second. Once the data has been successfully received by the other side, the data can be clocked out of the receive buffer at any rate. This drastically reduces current consumption by minimizing the time in active transmit mode. Please see the data sheet for a better description and more information.
Please note: These modules have a 1.25mm spacing header on them. You will either need to wire wrap for prototyping or mate with the appropriate female header. You may wish to add the 10-Pin breakout board for conversion to .1" standard breadboard spacing.
Check out our comparative range test!
Specifications:- Frequency: 2.4~2.524 GHz
- Modulation type: GFSK
- Operating Voltage: 3V
- Output Power: +4dBm
- Data Rate: 1Mbps; 250Kbps
- Small footprint size: 20.0 x 36.7 x 2.4mm
- Operating Temperature: -40 ~ +85 C
- Long range: 280mts @250Kbps ; 150mts @1Mbps
- Built-in antenna
- Very low cost
- Applications: Telemetry, Wireless Toys, Remote Control, Wireless Speaker, Wireless Earphone or Walkie-Talkie, Wireless Mouse and Keyboard, Utility Meters Data Downloading, etc
Software:
- Example PIC Code for 4-byte payload and 29-byte payload
Supported Antennae: Hah! It's built in!
Check out these handy calculators that help with antenna design.
Sold by single units.
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If you would like to tell us more, you can fill out our form if you need some psycho-suggestive questions. Go to the form.
Page 21 in the RF-24G PDF above lists the following as the payload size:
- In Shock-Burst mode payload size is 256 bits minus the following: (Address: 8 to 40 bits. + CRC 8 or 16 bits).
- In Direct mode the payload size is defined by 1Mbps for 4ms: 4000 bits minus the following: (Preamble: 8 (or 4) bits. + Address: 8 to 40 bits. + CRC: 0, 8 or 16 bits).
So unless I'm wrong, you at worst have 200 bits - ie 25 bytes - to work with. The whole transmission itself is a bit bigger - the payload is just one of 4 "pieces" of a transmission (which are all mentioned in the PDF).
If I'm wrong, please do correct me! Also, listing the buffer size in the specs would probably be very convenient ;)
Has anyone used this, or any other long range and high-speed wireless transmitters with a Cypress PSoC? Sparkfun has lots of code for the AVR's, but I would prefer to use the PSoC since it can be ordered for free from Cypress.