I love my old Bose Quietcomfort 15 headphone, so much that I decide to add a Bluetooth receiver to it to keep it in service for a couple of more years. During the process, I needed to DIY a short audio cable to connect the headphone and the Bluetooth receiver. I couldn’t find any information about the pinout on the Internet, so I disassembled the original cable to find out the schematic.Continue reading “Bose QC15 headphone cable pinout schematic”
Last year I bought a TaoTronics TT-BR06 Bluetooth Receiver to use with my iPhone. It works great, and the sound quality is fine. The only issue was that the volume was too loud. I am using it with a pair of Sony XBA-N3 earphone, it was uncomfortably loud even on the lowest volume.
Recently I looked up for this product on Amazon, and I found a review that mentions a modification that can adjust its output gain. I tried it and it worked like a charm. So I’m documenting this mod here. Maybe it also applies to other similar brands of Bluetooth receivers. So if you have similar problems, you can have a try.Continue reading “Bluetooth Receiver TT-BR06 volume mod”
相信大部分拥有N770的同志们都是玩了一阵子新鲜劲就过去了，最后N770的命运大概就是被卖掉或者在柜子里落灰。其实，N770这种开放的架构很容易把它变为数字台历和数码相框，让你的N770发挥出余热吧！Continue reading “Nokia 770从入手到精通（七）把N770作为数字台历和数码相框”
N770默认是工作在Client状态的，所以连接到电脑上以后会以一个U盘的形式存在。现在我需要把N770变成一个USB Host，支持连接鼠标、键盘、硬盘、U盘、MP3、USB HUB、USB转RS232等一堆设备，好处多多。
哈哈，这只是画画饼而已，N770的确可以接上述设备，但是实用性不高。不过，对于玩机一族，还是很值得一试的~Continue reading “Nokia 770从入手到精通（六）N770 的USB Host模式(上)硬件篇”