https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=ED05 2026-06-04T21:35:36Z Revision history for this page on the wiki MediaWiki 1.37.2 https://w.electrodragon.com/w/index.php?title=ED05&diff=20076&oldid=prev 2018-07-05T08:20:17Z

<p></p> <p><b>New page</b></p><div>== Schematic ==<br /> &lt;gallery&gt;<br /> File:BC05_Schematic.jpg | schematic<br /> File:BC05-Dev-01.png | Development board schematic, Button, mic, power part<br /> File:BC05-Dev-02.png | Audio amplification part<br /> File:Bc05_module.png | module pins<br /> &lt;/gallery&gt;<br /> <br /> == Pin Definition ==<br /> {| class=&quot;wikitable sortable&quot;<br /> |-<br /> ! Pin Number !! Definition !! Input/Output !! Description<br /> |-<br /> | 1|| GND || Input/Output|| Power Supply GND<br /> |-<br /> | 2|| PIO_14|| Input/Output|| Programmable I/O<br /> |-<br /> | 3|| PIO_5|| Output|| Programmable I/O<br /> |-<br /> | 4|| RST|| Input|| external reset<br /> |-<br /> | 5|| SPI_MOSI || CMOS Input || SPI data input <br /> |-<br /> | 6|| SPI_CLK|| CMOS Input|| SPI clock<br /> |-<br /> | 7|| SPI_CSB || CMOS Input || CPI chip select<br /> |-<br /> | 8|| SPI_MISO|| CMOS Output || SPI data output<br /> |-<br /> | 9|| RLED || Output || status LED 1, normally connect to red<br /> |-<br /> | 10|| BLED || Output || status LED 2, normally connect to blue<br /> |-<br /> | 11|| VREG|| Input|| ON/OFF, pairing, answering phone<br /> |-<br /> | 12|| 1V8|| Output || 1.8V power output<br /> |-<br /> | 13|| VBAT|| Input|| lithium battery power supply input terminal end<br /> |-<br /> | 14 || CHG|| Input|| lithium battery power charging input terminal end<br /> |-<br /> | 15 || GND|| Input/Output|| Power Supply GND<br /> |-<br /> | 16|| MIC_BIAS || Output || microphone power supply<br /> |-<br /> | 17|| MIC_RP || Input|| Positive terminal of the the microphone right channel differential input<br /> |-<br /> | 18|| MIC_RN|| Input|| Negative terminal of the the microphone right channel differential input<br /> |-<br /> | 19 || MIC_LP || Input|| Positive terminal of the the microphone left channel differential input<br /> |-<br /> | 20|| MIC_LN || Input|| Negtive terminal of the the microphone left channel differential input<br /> |-<br /> | 21|| GND || Input/Output|| Audio GND<br /> |-<br /> | 22|| SPK_RN || Output || Stereo right channel differential output negative terminal<br /> |-<br /> | 23|| SPK_RP || Output || Stereo right channel differential output positive terminal<br /> |-<br /> | 24|| SPK_LN || Output || Stereo left channel differential output negative terminal<br /> |-<br /> | 25|| SPK_LP || Output || Stereo lfet channel differential output positive terminal<br /> |-<br /> | 26|| PIO_13 || Input/Output|| Programmable I/O<br /> |-<br /> | 27|| PIO_11 || Input/Output|| Programmable I/O<br /> |-<br /> | 28|| PIO_12 || Input/Output|| Programmable I/O<br /> |-<br /> | 29|| PIO_9 || Input/Output|| Programmable I/O<br /> |-<br /> | 30|| GND|| Input/Output|| Power Supply GND<br /> |}<br /> <br /> [[category: BT Audio]]</div>

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