LawrenceGrif
Member since Feb 2014 • Last active Jun 2016Most recent activity
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@Gordon thanks for the heads up
..I'm hoping to let you set up most of BLE from JavaScript,
Would that allow changing of TX power?
We use this to de-range a beacon to say only a few meters. -
@Gordon v.intrested in BLE iBeacon any chance of support all Beacon types, Google Eddystone & altbeacon? Just starting to use these in projects.
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@gordon thanks for the heads up.
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@Gordon just checking at to the status of the [cheap board]? if/when it might ship.
I've joined opensensors.io and we got a education project which would be a very good fit as
Pico is unfortunately too expensive. -
@Gordon any chance of having 2 uarts surfaced on pins? also am I right the stm32f091cc has a DAC unlike the pico?
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I'm with @Gordon "The point of them would be to build them in to stuff, so you'd probably have a battery or power supply attached anyway" ...just what I want for my projects.
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....Getting the correct values seems like magic to me!
Yes have spent weeks of my life tuning PID loops.
For most simple control we don't use the D term this is a reasonable into to the subject
http://www.csimn.com/CSI_pages/PIDforDummies.html and http://www.pidtuning.net/ -
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Good news
Semtech and STMicroelectronics Collaborate to Scale LoRa® Technology to Meet High-Volume Demands of Internet of Things Applications
http://www.st.com/web/en/press/c2790 -
Regarding external SMA antennas
This what Numerus a French lora module manf. uses nice and compact 2.3dbi 14cm high
From Linx Technologies.
https://www.linxtechnologies.com/resources/data-guides/ant-868-cw-hwr.pdf
You can get from digi http://www.digikey.co.uk/product-search/en?keywords=ANT-868-CW-HWR-SMAI believe libelium on their LoRa WASP mote use a "special 4.5 dBi antenna" by the same Manf.
This a pig ugly one multitech use 3.dbi 20 cm high
http://www.multitech.com/models/95217911LF
St Albans UK