Espruino JavaScript
NRF52832 Bluetooth LE modules with Espruino #5972
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Posted at 2017-12-01 by vb You can add PCB adapter board with various pin arrangements. Posted at 2017-12-01 by Spocki For me, the MDBT42 module alone is too difficult to handle. I would like this or another module soldered on a small "baseboard" where the "baseboard" itself can be soldered onto "extension boards". Posted at 2017-12-01 by @gfwilliams What about something inbetween? Realistically it's whether I make an adapter board based on the MDBT42, or I try and buy in a different module that has a larger pin spacing. I think that just supplying the adaptor unsoldered won't work - it's just too fiddly for most people. Posted at 2017-12-01 by vb What will be cheaper - two different board (small and big) or small board soldered on big board? For example, there are many very cheap ESP8266 modules soldered on top of adapter board. Posted at 2017-12-01 by Spocki Xungtong perhaps. 1.27mm castellated. Normal and PA (amplified) versions, pin compatible. 1K pcs USD 4 normal and USD 5 PA. Attachments: Posted at 2017-12-01 by @yerpj What about selling a "Espruino" version of this board, @gordon? https://www.tindie.com/products/marcaz/ble-5-nrf52832-development-board/?pt=ac_prod_search For a public price of 16$, you should also be able to make some margin and reselling it, with Espruino inside for 20-25$? Posted at 2017-12-01 by @gfwilliams It's a thought... I'd actually just been looking at what I could get one of the Chinese ones for, but it's not any less than that. I could get them made for a bit less than that, but then I guess I'd need to have a bunch of stock - which I could avoid if I was just using something like that. Posted at 2017-12-02 by vb Look at http://www.cdebyte.com/en/product-view-news.aspx?id=243 Posted at 2017-12-04 by @gfwilliams That one is 1.27mm pitch (so 0.05") - I guess that's more easily solderable. Do you think it's better than having the existing MDBT42 for the more hardcore, and then having a 2.54mm (0.1") breakout option too? Posted at 2017-12-05 by vb Same functionality + external antenna for less money... Posted at 2017-12-05 by @gfwilliams Well, there is the external antenna, but you still have to do some pretty small SMD soldering to swap over the link and actually use it... Who would buy one? realistically you'd still need to make your own PCB to use it, but I guess I could sell them with a breakout PCB alongside, but not soldered. I can't help feeling that a pre-soldered 0.1" board would probably be a more popular thing to do first. Posted at 2017-12-05 by vb Also made several project on https://oshpark.com/ and https://easyeda.com/ - adapters for 0.1" for breadboard or templates for own projects... Posted at 2017-12-14 by ConorONeill I ordered one of these recently to see if it's any good. $12. Hasn't arrived yet. Posted at 2017-12-15 by @gfwilliams I'd be interested to see what it's like - I thought that might be a zigbee-style module, so with a metric (2mm?) pin spacing... But i could be wrong as I don't think it says anywhere. Posted at 2017-12-15 by ConorONeill I'll report back when it arrives. Usual Aliexpress random number :-) Posted at 2017-12-20 by Drong Have you ever ordered from Seeedstudio https://www.seeedstudio.com/fusion_pcb.html? Posted at 2017-12-20 by @gfwilliams
Not using fusion PCB (I tend to use OSHPark or DirtyPCBs), but Seeed do in fact manufacture all the Espruino boards for me. Posted at 2018-01-21 by ConorONeill That NRF52832 board arrived last week. I can find absolutely no information about it online except that it's intended as a plug-in module for their bigger development board. There are no pin markings but a bit of continuity testing found VDD/GND/SWDIO/SWDCLK and I was able to flash the stock espruino_1v95.166_nrf52832.hex - Seems to work fine. With a pin spacing of 2mm and double rows of pins, it can't be used with breadboards. Having all the pins exposed is handy. I just have to figure out the rest of the layout! It'll probably end up being fitted inside a ring of RGB LEDs. Posted at 2018-07-29 by tBStar @conoroneill, I am going the same route as you. I ordered the Raytac MDBT42Q BLE Module and I am planning to put a breakout board together once I receive it. A little background, I built prototypes before and programmed BGM111 directly using Simplicity Studio but I got very interested in using JS instead of C. Thanks Posted at 2018-07-29 by Robin Sun 2018.07.29
and pre-installed Espruino from an authentic breakout board wasn't the preferred choice because . . . .? https://shop.espruino.com/mdbt42q-breakout Technical MDBT42Q Bluetooth Module Expect MDBT42Q-breakout boards available on Amazon N.A. around mid August 2018 Robin edit: Found this regarding bootloader: Flash a new MDBT42Q with Espruino Mon 19th, March 2018 Posted at 2018-07-30 by @gfwilliams As @robin says, take a look at http://www.espruino.com/MDBT42Q - that should answer a lot. If you're ordering a module from the Espruino shop then it's all pre-installed, otherwise, direct from RayTac there is no software and you just use the MDBT42Q firmware on the Espruino site.
yes, so OTA updates are easy.
If it's segger, just drag the hex file onto the JLINK drive that appears. |
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Posted at 2017-12-01 by @gfwilliams
Hi!
How many people are interested in Bluetooth LE modules pre-programmed with Espruino?
I have been considering offering the MDBT42 modules used on Puck.js, however they can be a bit fiddly to solder (with 0.7mm pin spacing).
Would a larger module (similar in size to the HC-05, with 1.5mm pin spacing) work better, or should I just offer something with proper 2.54mm (0.1") through-hole connections instead?
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