Biking

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The collection of information useful for biking with a Neo.

Contents

Bike Mounts

Power Supply

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

Connecting a hub (Nabendynamo) like the SON to a self-made or prebuilt charger can supply your device while biking.

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.

pre-built chargers

self-made chargers

Linear regulator above might be replaced by DE-SW050.

There is a prototype of a hub featuring built-in USB-out which will hopefully be ready for mass market soon.

Alternatives

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 [1], but it looks like their coil produces only 3vAC so it makes sense to use a custom coil.


Software for biking

See also

Heart Rate Monitor

According to mailing list discussions some heart rate monitors use ANT. Due to the modern chip cases building a reliable homemade receiver seems to be difficult.

HRM Links

Other Hardware

  • oBiCo - An open bicycle linux computer - seems to be alive, but nothing there yet.
Personal tools

The collection of information useful for biking with a Neo.

Bike Mounts

Power Supply

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

Connecting a hub (Nabendynamo) like the SON to a self-made or prebuilt charger can supply your device while biking.

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.

pre-built chargers

self-made chargers

Linear regulator above might be replaced by DE-SW050.

There is a prototype of a hub featuring built-in USB-out which will hopefully be ready for mass market soon.

Alternatives

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 [1], but it looks like their coil produces only 3vAC so it makes sense to use a custom coil.


Software for biking

See also

Heart Rate Monitor

According to mailing list discussions some heart rate monitors use ANT. Due to the modern chip cases building a reliable homemade receiver seems to be difficult.

HRM Links

Other Hardware

  • oBiCo - An open bicycle linux computer - seems to be alive, but nothing there yet.