also introduces users to the U8g2 display library which he says is a bit more feature-rich than the common Adafruit SSD1306 library. There’s even a small Python GUI to help you get your new player up and running. With the hardware sorted, all you’ve got to do is flash the firmware and load up an SD card with some MP3s. does a good job walking readers through the build making it fairly easy to remix, reuse, and reshare. It can even play ads in between songs, should you want such a thing.Ĭontrolling the DFPlayer module is easy using serial commands from a microcontroller, making it a convenient subsystem in bigger projects, and a potential alternative to the popular VLSI chips or the hard to come by WT2003S IC. This tiny module comes packed with a ton of interesting capabilities such as EQ adjustment, volume control, and a 3 watt amplifier amongst other things. But it’s not looking good.When saw DFRobot’s DFPlayer module, he decided he wanted to make his own retro MP3 player. Glad we’re doing this investigation into a battery replacement. On the battery site you linked there was a box on the right that said something like “Tell us why you didn’t buy from us” and I said we were looking for a Connect battery, gave the Flickr link, and my e-mail address. Then how could we mount the circuit board in the new Loox battery without partial disassembly of that battery? What if its insides don’t resemble the foam-like substance I see? Alternatively, we could find a less tall battery and physically attach the circuit board to the Connect’s case, above the batttery, for rigidity and positioning. Assuming it’s just stuffed a little bit into the foam, it needs to be in there for structural rigidity and positioning (the contacts have to mate with contacts in the front half of the Connect). And we know there are always warnings about disassembling a battery.Įven if the circuit board is just stuffed a little into the white foam-looking stuff, a slight poking with a ballpoint pen revealed that its texture is like the toughest type of condensed foam, and the penpoint didn’t dent it. We won’t know enough until someone disassembles the battery, or at least tries to take off the black tape-like covering off the back (the side with the circuit board). The circuit board may cover the whole back of the battery. That was my first thought, but now I realize that’s based on nothing. I may have misled by saying the circuit board was stuffed into the foam. Also another potential Navigon replacement with wires already attached. This battery has 4 terminals and all we have to do is to solder the terminal to the board via jumper wires. A possible substitute that I saw was the battery for a Navigon Pocket Loox N100. It’s sorta irrelevant, but you asked for dimensions: 3.5 cm x 5 cm 1 3/8" x 2" not including the top circuit board part. Top of battery with white paper pulled aside, revealing more of the back tape-like covering. Next closeup on the white background shows my fingernail holding back the black tape so you can see how the circuit board goes into the white foam stuff (is the white foam the lithium power source?). I didn’t disassemble more because this is a battery that came out of a working Connect whose right button failed, so I plan to use it in another Connect when its battery fails.ĭisassembly entailed removing the two tiny Phillips head screws, then prying the battery off the back–it’s glued on.įirst closeup on the white background shows the tissue paper-looking stuff peels back and you see the black electrical tape looking stuff. It seems to be one solid unit of circuit board stuffed into the battery proper. Like no battery and connector I’ve ever seen. Can anybody post the physical dimension of this battery and the profile of the terminals? Maybe we can adapt an existing cellphone or another battery compatible with another Sansa model.
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