Search found 9 matches

by stevech
Thu Jan 12, 2012 11:51 pm
Forum: JeeNode and Wireless
Topic: Arduino 1.0 Works With JeeNodes and RFM12B Boards
Replies: 5
Views: 10608

Re: Arduino 1.0 Works With JeeNodes and RFM12B Boards

Yes... ZigBee is to IEEE 802.15.4 what TCP/IP is to IEEE 802.3 - one of many network layer protocols. ZigBee is not a synonym for IEEE 802.15.4 XBee is a product name (Digi International) for one of/the most popular plug and play IEEE 802.15.4 module, with a different product in the XBee family supp...
by stevech
Thu Dec 15, 2011 2:36 pm
Forum: JeeNode and Wireless
Topic: Hope RFM12 library in C rather than Arduino C++
Replies: 0
Views: 4922

Hope RFM12 library in C rather than Arduino C++

FYI
There's also another RFM12 library out there - RFM12B in plain C, not C++ as Arduino uses. So it'll work with Atmel's free AVR Studio 4. And download with AVRdude to the on-chip Arduino bootloader.
http://www.das-labor.org/wiki/RFM12_library/en

Nicely done documentation too, using doxygen
by stevech
Thu Dec 15, 2011 2:04 am
Forum: JeeNode and Wireless
Topic: Arduino 1.0 Works With JeeNodes and RFM12B Boards
Replies: 5
Views: 10608

Re: Arduino 1.0 Works With JeeNodes and RFM12B Boards

ZigBee? For a simple point to point link? Or do you actually mean an XBee radio in 802.15.4 mode without ZigBee? -- Yes, I too got the 915MHz mode running with Arduino 1.0. There's also another library out there - RFM12B in plain C, not C++ as Arduino uses. So it'll work with Atmel's free AVR Studio...
by stevech
Mon May 09, 2011 8:27 pm
Forum: JeeNode and Wireless
Topic: JeeNode 915 kits
Replies: 5
Views: 8632

Re: JeeNode 915 kits

No biggie to me- they're dirt cheap and are typically found in a hobbyist's kit.
by stevech
Sat May 07, 2011 7:05 pm
Forum: JeeNode and Wireless
Topic: JeeNode 915 kits
Replies: 5
Views: 8632

Re: JeeNode 915 kits

Mine came with right-angle.
No biggie, you can use either straight or angled, depending on how you solder them to the board.
by stevech
Sun Apr 17, 2011 11:58 am
Forum: Connecting to BBB, RBBB
Topic: Smoked a BUB :[
Replies: 1
Views: 5409

Re: Smoked a BUB :[

not much evidence to go on. But first guess is the FTDI chip's Vcc went far too high, like the regulator failed or somehow 15V from a power source got applied to where 5V belongs.
by stevech
Sun Apr 03, 2011 12:18 pm
Forum: JeeNode and Wireless
Topic: JeeNode transmit distance
Replies: 10
Views: 43366

Re: JeeNode transmit distance

I should clarify earlier post
outside, receiving node: error rate too high at about 300-400 ft.
meaning the error rate, with the high data rate, is GOOD for the first few hundred ft. Range would improve with better antennas, lower data rate, narrower channel, etc.
by stevech
Sat Apr 02, 2011 4:25 pm
Forum: JeeNode and Wireless
Topic: JeeNode transmit distance
Replies: 10
Views: 43366

Re: JeeNode transmit distance

HopeRF RFM12B. Uses SiLabs chipset. Range will vary by Band: 433 is best; 868/900 about 30% less (laws of physics) Antenna type your chosen data rate and channel bandwidth - halve the channel bandwith (and data rate), great increase in range due to ability to demodulate weaker signals your chosen se...
by stevech
Sat Apr 02, 2011 1:41 pm
Forum: JeeNode and Wireless
Topic: Work in process... AVR microprocessor, HopeRF RFM12B radios
Replies: 0
Views: 5136

Work in process... AVR microprocessor, HopeRF RFM12B radios

Work in process... AVR microprocessor, HopeRF RFM12B radios (433, 868/902-929MHz), 2mW. C/C++ code, initially Arduino, uses only Arduino base libraries. So far, the code can send/receive structured packets with a header. In the header is the packet length (variable), node IDs, and flags for "ACK req...