Hi! I've been pondering what to do with old phones. Currently I have decent android as personal #1 device and L640 will be "work phone". That leaves L820 (currently running RS1 393.5) and low-end Huawei Y3 free for experimenting.
So far I have thought about following uses:
1. Home automation hub/terminal. I'm planning to make heating system automation and control using nRF radios, arduinos, 4G router and web service. Arduino <-> router connection is through either wlan or ethernet shield. BT via phone would be another (weak) link and extra effort, so not that. However, phone could be used to collect and process measured data and post it to web server. Is it possible to run very simple web server in phone or run server in arduino and still make client calls to external server? Control from web server to arduino should propably be direct, also some statistics should go directly from arduino to server. Weak link again in phone.
Phone could be used as GUI, remote camera * (not necessarily both at the same time though ;) ) or "alarm hub". W10M gives more control over phone functionality than WP8.1, but still it is not possible to send or read text messages (if phone has SIM card) or emails. That is the main reason for web server.
Phone could be used as wlan hotspot, but getting hotspot automatically on after power down / reset / ??? is not possible, is it?
W10M could be a bad choice because automatic updates and reboots. Although connected to charger, starting is more or less guaranteed, updates use data (can they be turned off? Connection would be prepaid, 1c/MB with max 1€/day) and unexpected reboots after updates are not good either... Y3 does not boot up on power, but it can be set to start at set time.
I would guess that both platforms start services automatically (WM with live tile?)
* for detecting movement, I think the image should be processed like PIR sensors: slices around sensor field of view are averaged to one or another of two values, and fast change between them triggers.
2. Navigator + ODB terminal. L820 would be very good for this. OLED display works however cold it could get, and I have Sygic premium (voice navigation, HUD) for Windows mobile. However keeping phone on all the time might not be a good idea (I haven't tested how long idle without data connection it can stand) and if turned on, it's quite slow to start up - even more so if battery has gone flat. I think that the phone should be connected to a charger all the time. Ignition on -> charger on -> phone on (if was off).
Internet could be shared from another phone. Would it be possible to attach wireless back up camera to the phone? And automate view switch when reverse gear is set?
ODB - my car had fuel consumption (and some other) info shown in radio display. Radio did not know what MP3 was, so it had to go ;) Basically I can live without ODB or live fuel metering very well ;)
What do you think? Did I get something wrong? What have you done with an old phone? What would you use an old phone for?
So far I have thought about following uses:
1. Home automation hub/terminal. I'm planning to make heating system automation and control using nRF radios, arduinos, 4G router and web service. Arduino <-> router connection is through either wlan or ethernet shield. BT via phone would be another (weak) link and extra effort, so not that. However, phone could be used to collect and process measured data and post it to web server. Is it possible to run very simple web server in phone or run server in arduino and still make client calls to external server? Control from web server to arduino should propably be direct, also some statistics should go directly from arduino to server. Weak link again in phone.
Phone could be used as GUI, remote camera * (not necessarily both at the same time though ;) ) or "alarm hub". W10M gives more control over phone functionality than WP8.1, but still it is not possible to send or read text messages (if phone has SIM card) or emails. That is the main reason for web server.
Phone could be used as wlan hotspot, but getting hotspot automatically on after power down / reset / ??? is not possible, is it?
W10M could be a bad choice because automatic updates and reboots. Although connected to charger, starting is more or less guaranteed, updates use data (can they be turned off? Connection would be prepaid, 1c/MB with max 1€/day) and unexpected reboots after updates are not good either... Y3 does not boot up on power, but it can be set to start at set time.
I would guess that both platforms start services automatically (WM with live tile?)
* for detecting movement, I think the image should be processed like PIR sensors: slices around sensor field of view are averaged to one or another of two values, and fast change between them triggers.
2. Navigator + ODB terminal. L820 would be very good for this. OLED display works however cold it could get, and I have Sygic premium (voice navigation, HUD) for Windows mobile. However keeping phone on all the time might not be a good idea (I haven't tested how long idle without data connection it can stand) and if turned on, it's quite slow to start up - even more so if battery has gone flat. I think that the phone should be connected to a charger all the time. Ignition on -> charger on -> phone on (if was off).
Internet could be shared from another phone. Would it be possible to attach wireless back up camera to the phone? And automate view switch when reverse gear is set?
ODB - my car had fuel consumption (and some other) info shown in radio display. Radio did not know what MP3 was, so it had to go ;) Basically I can live without ODB or live fuel metering very well ;)
What do you think? Did I get something wrong? What have you done with an old phone? What would you use an old phone for?
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