Anyone tried Laird RM1XX modules?

ursm · July 17, 2016, 10:28pm

@Charles I’ll be patient until you gave the signal We have also to wait for the RM-module.
Are 1206 components to big for your layout???

Charles · July 17, 2016, 11:26pm

Ok guys, version 1.0a is out no more copper on mounting holes, and also added via for ground plane under RM1xx module

I updated all links and pictures in this post and on github of course

PCBs.io also

@ursm
yeah 1206 will be difficult and more than this, I’m storing already 0603 and 0805 basic so I’ve got some duplicate components and having now in 1206 will need me another version which makes me 3 versions for each comps (but I already thought about this)

But 0805 are not so difficult to solder

BoRRoZ · July 18, 2016, 6:54am

stuartlea · July 22, 2016, 10:06am

Does anyone know how much code space there is on the RM186? For the life of me I cannot see this information on their website. Apologies if it’s right there…been a long week.

BoRRoZ · July 22, 2016, 10:35am

you can program this module with a language they call ‘smartBASIC’

http://cdn.lairdtech.com/home/brandworld/files/Guide%20-%20smartBASIC%20Extensions%20-%20RM1xx.pdf

Charles · July 22, 2016, 10:45am

yeah,

smartBasic

This is a strange choice as today we have such LUA or small pyhton open source engine but I think we could deal with it

Prepare to have fun converting sensors libraries to SmartBasic !!!

stuartlea · August 2, 2016, 7:08pm

As expected…my 29th July shipping date is “pending”

kersing · August 2, 2016, 8:09pm

I contacted Mouser earlier today. They will get back to me with an update on this parts shipping asap.

jmarcelino · August 2, 2016, 11:06pm

I already have the developer kit and actually working on a blog post. It’s a good piece of kit. No problem connecting to Things Network (used OTAA) though I can’t use the “lora check” function and message ACKs don’t return RSSI/SNR as reported probably because of the know differences in how ACK is working in TTN.

Everything else seems to work fine so far.
I already used smartBASIC in the past for their BLE modules so that wasn’t an issue. Even if you’re new to it the included terminal/compiler package is easy to use and works on macOS, windows, and linux

If you have any questions let me know and I’ll try to address them here or on the post.
I haven’t connected sensors directly to it as I’m focusing on the BLE to LoRa side. By the way keep in mind the BLE stack provided is Central side only, so it’ll only talk to peripherals.

arjanvanb · February 13, 2017, 7:09pm

9 posts were split to a new topic: What’s your experience with pcbs.io?

stuartlea · August 4, 2016, 9:16am

Hi…can you quantify how much code space is available… We would need to add some code in order to calibrate our sensors and don’t want to run out of space.

Charles · August 4, 2016, 9:23am

@stuartlea
I don’t have any Laird module in hands. I have no idea of space left after programming, and I didn’t found any information on module Flash size and RAM size. Would be interesting to know.

BoRRoZ · August 4, 2016, 9:30am

that’s a question for jmarcelino

@ Charles, yes your WeMos Gateways looks pretty !

jmarcelino · August 4, 2016, 11:38am

Hi Stuart,

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

github.com

LairdCP/RM1xx-Applications/blob/master/tempsens.rm1xx.sb

//******************************************************************************
// Copyright (c) 2016, Laird
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
// IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// SPDX-License-Identifier:ISC
//
// +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// +++++                                                                      ++
// +++++  When UwTerminal downloads the app it will store it as a filenname   ++

This file has been truncated. show original

(purely reading sensor, example doesn’t connect to LoRa or BLE)

stuartlea · August 4, 2016, 12:08pm

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.

BoRRoZ · August 4, 2016, 12:11pm

I think that depends on the quality of the compiler

(and the optimised sensor librarys they make available )

stuartlea · August 4, 2016, 12:16pm

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 !

BoRRoZ · August 4, 2016, 12:32pm

BWhitten · August 4, 2016, 1:42pm

Hi from Laird
If you have any questions or comments I’ll be sure to help out if I can.

BoRRoZ · August 4, 2016, 2:25pm

Hi and thank you !

( Laird devkits with a nice ‘TTN club’ discount , that’s a win / win )