The collection of information useful for biking with a Neo.
- André Gaul documented a complete mounting kit
- It's just a prototype :) but with some foam around the handlebar and careful positioning to avoid bumps, a basic attachment like this might work and makes it easy to "pinch" the screen when you need to finger tap something.
- Images of an interesting bike mount
- Another mount: Description/Parts list (in German) and Pictures
- And another one "which I don't recommend very highly; I've had the phone come off it (without major damage, which is good) twice now while riding over rough road."
If you want to keep the GPS running and have the screen always on or staying on with a long timeout, you'll need a way to supplement power.
Charging via hub
The FreeRunner has three different charging modes: 100mA, 500mA and 1A. 100mA seems to be too low, as it is said, that the FreeRunner draws 100mA current even when it is switched off. A hub dynamo provides 500mA. If you want to use your lights while charging you need to connect the lights in series to the charger. At least the SON will increase the voltage and still delivers the same current. But you need a bypass circuit in case of less current draw of the charger when the battery is full.
Using an USB connection with that ID resistor for 1A mode provides the advantages that the charging mode is automatically correct. This might be important if you stop frequently and so cause some kind of power "disconnect" and you do not want to select the charge mode all the time. 1A mode does not harm the hub dynamo but if the dynamo can provide the 500mA also at higher voltages, you can gain more charge current than in 500mA mode if you have a switching regulator. For example if the dynamo would provide 10V 500mA and you would have a 100% efficient regulator, you would have 5V 1A.
- JaWeTec Bike Charger
- There is a prototype of a hub featuring built-in USB-out which will hopefully be ready for mass market soon.
- Article (German) in c't 23/2007, page 190
- maybe 6V Forumslader (You need at least one diode in series to be within the maximum ratings of the power managment IC and the FET switches in FreeRunner.)
Linear regulator above might be replaced by DE-SW050.
If you decide to try solar, it's recommended to get a flexible panel and attach it to your backpack or something like that. One nice advantage here is it might also charge even when you're not moving. It's unlikely anything below 7 watts will keep things running. (5v * 1A = 5W).
It might work with an dynamo outside the hub like the one on the reelight, but it looks like their coil produces only 3vAC so it makes sense to use a custom coil.
An extra battery like Rechargeable USB Emergency Power Backup Pack 2400mAh $14.43 can also be useful for extending battery life-time.
Software for biking
- TangoGPS + OSM Cycle data
- Rana (uses Pyroute)
- pylgrim bitmap map viewer. Dead.
Heart Rate Monitor
- German Microcontroller Wiki, Circuit diagram and DSP Simulation.
- oBiCo - An open bicycle linux computer - seems to be alive, but nothing there yet.