Repeater Bridge – DD-WRT Wiki

A wireless bridge connects two LAN segments with a wireless link. The two segments are in the same subnet and look like two Ethernet switches connected by a cable to all computers on the subnet. Since the computers are on the same subnet, broadcasts reach all machines. DHCP clients in one segment can get their addresses from a DHCP server in the other segment.Use a wireless bridge to transparently connect computers in one room to computers in a different room when you cannot—or don’t want to—run an Ethernet cable between the two rooms.A standard wireless bridge (Client Bridge) connects wired clients to a secondary router as if they were connected to your main router with a cable. Secondary clients share the bandwidth of a wireless connection back to your main router. Of course, you can still connect clients to your main router using either a cable connection or a wireless connection.

Source: Repeater Bridge – DD-WRT Wiki

Rechargeable Battery Capacity Tester

Do you have a pile of AA rechargeable batteries in your drawer? Some are old, some are new, but which sets would you bring with your camera on your next trip, and which ones are past their useful life? I like using rechargeable batteries, but I’m certain that some of them are not living up to the stated capacity on the label. So how good are those batteries? Simple battery testers measure the voltage, but that’s not what we need – we want to find the overall capacity of the battery. How long will a battery last from the time it’s fully charged to the time that the “low battery” indicator comes on your device? You can see this in action in a video in the last step of this instructable.

Source: Rechargeable Battery Capacity Tester

Building BT Receiver | DslrSystems

BUILDING BT RECEIVERTO BUILD BT RECEIVER YOU WILL NEED:– An Arduino Board like that: Arduino Pro Mini 328 – 3.3V/8MHz– A USB Host Shield from Oleg Mazurov’s Circuitathome.com site– An compatible bluetooth module like that: Bluetooth SMD Module – RN-42for Bluetooth Module HC-06 check out eBay– Pololu 5V Step-Up Voltage Regulator NCP1402

Source: Building BT Receiver | DslrSystems