Jump to content
43oh

Lgbeno

Members
  • Content Count

    375
  • Joined

  • Last visited

  • Days Won

    26

Everything posted by Lgbeno

  1. There are at lease 2 NC pins on the QFN32 Sent from my iPhone using Tapatalk
  2. There are at lease 2 NC pins on the QFN32 Sent from my iPhone using Tapatalk
  3. Im using the 32 QFN which I'm not sure if it has any more pins than the 28tssop. But yes the addition is io's that are connected to the timers Sent from my iPhone using Tapatalk
  4. I'll run some tests but I'm thinking that the impact won't be that much different because the CPU must stay active to feed bytes inti the peripheral anyway. The biggest tradeoff would be the performance hit that you are spending cycles shifting out bits instead of doing other computation. Sent from my iPhone using Tapatalk
  5. I would have to think about that, the Transceiver can work up to 8MHz and the CPU is running at 16MHz. My instinct tells me that I can get close if not interrupted. I'll need to test it out I guess. Sent from my iPhone using Tapatalk
  6. Sorry for my ignorance, I want to write 32 bytes out of the SPI port can I load up a fifo and tell the peripheral go or do I need to load each byte into the register to shift out. If the latter, I don't see as much advantage over bit banging. Sent from my iPhone using Tapatalk
  7. Yeah I'm mistaken on the name. Didn't bother to look it up. I usually simplify it in my mind that there is the port with the UART and then "the other port." Sent from my iPhone using Tapatalk
  8. But I like the UART on uscib Hmmm, decisions! Sent from my iPhone using Tapatalk
  9. It would be pretty difficult with the 2 layer board unfortunately. I'll have to sleep on it but so far I'm leaning towards changing it. Its a little of a bummer that those 3 pins have the most useful peripherals attached to them! Sent from my iPhone using Tapatalk
  10. So heres my question, what does everyone think about bit banging the radio interface to free up the USCI port? I might make that change Sent from my iPhone using Tapatalk
  11. Yup, my theory is that if the nodes become cheap enough, we'll think of all kinda of places to stick these things. For me, I'm monitoring stuff inside of BeeHives, if I can use twice as many sensors for the same out of pocket expense, I'm really happy Sent from my iPhone using Tapatalk
  12. Yeah, the HopeRF website is a little dodgy, I clicked through those malware warnings for the heck of it. As far as I know I'm still safe. From what I can tell there are a lot of similarities to nRF24 except for cost, this one is cheaper which lets me hit that 9.99 price in low volume. HopeRF has been easy to work with when purchasing parts, I must say that. Again the decision about this radio was pretty much strictly made on price, once we have a solid library, it should be pretty transparent.
  13. Gotta love the double post It shouldn't be a problem to get a few months of battery life assuming the processor and radio can be sleeping a fair amount of time. The boost converter has pretty low quiescent current and AA cells have 1800 mAh or more.
  14. I've wanted to create a batteries included, very low cost wireless sensor kit for quite a long time now. I've made some attempts in the past but up until this point they were either too expensive to produce and too limited in expandability. I think that I've finally struck the balance that I'm going to be pleased with. The device is a little larger than a single AA battery, that is what it is powered off of. It has an NCP1400 Boost converter to bump up the voltage to 3.3V. The processor is MSP430G2553IRHB (32QFN) and it is attached to a HopeRF RF75 radio. There are 15 GPIO availa
  15. Well I was thinking maybe playing an annoying sound that will startle them but shoot stuff is way more cool Sent from my iPhone using Tapatalk
  16. Looks pretty cool! Would be fun to hack the motion sensor to do some some deer detection. Keep those animals from eating the shrubs Sent from my iPhone using Tapatalk
  17. Awesome guys! These are the exact types of projects that I'd like to help connect to analog.io. Let me know if you are interested! Sent from my iPhone using Tapatalk
  18. There really is no need for MSP432 with the electron, it has its own Cortex M4 that you would write code for. Sent from my iPhone using Tapatalk
  19. In someways I hate to say it because it lakes the fun out if it but have you looked at the Particle Electron for this application. Already has a suitable micro, already has a suitable GSM modem, is more embedded that RPi. Maybe you would just need to add some NVM for offline storage. Sent from my iPhone using Tapatalk
  20. Actually its the cc2540 Mini DK, my collection is getting out dated! Sent from my iPhone using Tapatalk
  21. It's one of the few kits that I don't have. I have the keyfob but not the sensor tag. Anyone want to do a trade? Sent from my iPhone using Tapatalk
  22. This is very cool, from here a lot of other things are possible Sent from my iPhone using Tapatalk
  23. My experience working with 5v: level shifting to 3.3...all the time Sent from my iPhone using Tapatalk
  24. No worries, right now it is ignoring all input, maybe this weekend I'll code up something more sophisticated Sent from my iPhone using Tapatalk
  25. I'm pretty sure that there is little to no overlap between CC1120 and CC1101. CC430 has the same radio core as CC1101 afaik Sent from my iPhone using Tapatalk
×
×
  • Create New...