Well PCBs.io is really a new service, I can't blame them because they just start and OSHPark are here for long time but what I can say:
So both services are fine and provide excellent boards, depends on what you want to do, hi quality (does it really needed for prototyping?) vs price/quantity ?
and off course a deserved fair share for the open source designer !
There's 30KB (30720 bytes) available for code.
For example the temperature sensor example code provided by Laird below takes up 394 bytes of that once compiled and loaded
(purely reading sensor, example doesn't connect to LoRa or BLE)
Ouch !!!! That's taken a bit of the shine off the latest wonder chip. I was going to get worried if it was less than 64k but 30k is a shocker.
I think that depends on the quality of the compiler
(and the optimised sensor librarys they make available )
Sure....but with the bandwidth being sooooo low we need to be very smart in the way in which we make use of it..especially since our site survey seem to suggest that 980bps will be the best we can get out of our link. Oh well, it's a challenge - would be boring if you'd said 1MB !
Hi from Laird If you have any questions or comments I'll be sure to help out if I can.
Hi and thank you !
( Laird devkits with a nice 'TTN club' discount , that's a win / win )
Oupssss 30k ? depends on what are already in in term of lib and what we need to code And what about RAM ?
But Laird guys have plenty of fun look below on github
Hi @BWhitten! While discounts as BoRRoZ suggested would be awesome, I think it would help the TTN community tremendously if you'd publish sample code that already works with TTN out-of-the-box (minus replacing the keys).
isn't 30k plenty of space considering the lorawan stack is already implemented? so it's 30k only for application code if I understand it correctly
Depends on what you are up to.....I'm guessing that some people will be performing some significant signal processing/conditioning of signals at regular intervals and then pushing a go/no-go up to their servers.
The sample "command line" code already connects to TTN with no changes.
Just get the configured DevEUI (if you don't want to set your own) with AT I 25
Then set the AppEUI and AppKey with:at+cfgex 1000 "Your_App_EUI"at+cfgex 1002 "Your_App_Key"atz
Finally load the example script they provide below and run as cmdOnce running you can join TTN with OTAA by typing lora join
>Attempting to join the LoRa network
Successfully joined the LoRa network
>lora send "Hello World" 1 1
>LoRa TX Complete Event
LoRa RX Complete Event
Hi,I am considering the DVK-RM191.Currently I am working with the Microchip RN2903 Boards.I have been waiting for the TTN LoRa Gateway for many months and at least with the RN2903 I can do some testing at the PHY level by using the "MAC Pause" command and thereby have a send device and receive device for range testing.I haven't seen the ability to do this in the RM191 in the docs I have looked at. Is it possible?Concerning the BLE capability, I am considering using Eddystone BLE beacons - probably BL600 and other manufacturers.The RM191 would aggregate these ... Any idea about a typical population of beacons that could be supported by a single RM191?Thanks,Alan
@BWhitten: do you have any info about the delays mouser has to ship the orders of your modules? Is it delayed on Laird's side or is it mouser?
@gonzalocasas: I'm afraid I don't have any of that information, I'm in engineering so I can't comment on pricing and shipping.The best place to ask is probably the support portal.
thanks! I just sent a message there.
@BWhitten : any idea where we can find RM1xx-defs.h?The https://github.com/LairdCP/RM1xx-Applications/blob/master/cmd.loramac.rm1xx.sb sample requires this header file but it's not part of the repository
I tried to register here http://www.lairdtech.com/support/product-support-center/embedded-wireless/embedded-wireless-software/register-your to download the SDK but the form keeps insisting that a "field is required" while everything is filled in.
@dirkvm: This header file should be in the firmware release package for the module.If you can try another browser or device. Failing that drop them a line on the support portal, the website can be a little temperamental.