zhou2008 https://item.taobao.com/item.htm?spm=a21n57.1.0.0.3b58523cZBKedf&id=616978694684 I found a Bluetooth serial module on Taobao and thought about using it for writing, but surprisingly, it worked!
zhou2008 First, disassemble the K5. Apply high-temperature tape (other tapes are also acceptable, as long as they provide insulation) according to the size of the module.
zhou2008 BG8LGP The wiring diagram can be found here. zhou2008 If I add another switch, I'm not sure if there are any unused GPIO pins on the MCU left.
zhou2008 Based on the pin definitions of the module, connect TXD to RXD, RXD to TXD, connect to 3V3, and connect to GND.
zhou2008 Then, first provide power to the module separately and connect the CH340. Connect to the computer Download this software: https://www.hc01.com/downloads
zhou2008 After selecting your options, click on the "Port Rate Settings" button on the left. Then send to the input area.AT+BLE = 0 Turn off BLE; otherwise, two devices will appear.
zhou2008 Then you can search for this device in your computer's Bluetooth settings. Then, navigate to "More Bluetooth settings". Remove the incoming direction. Now you can use software to connect to the serial port and write frequency data!
BG5VLI That's great! However, if you want to directly power it from a handheld device without firmware support, turning on the handheld device is essentially turning on the Bluetooth module, which could potentially consume more power.
zhou2008 I looked at the data provided by the vendor, which showed a value of 5 when the machine was not connected to the SPP.~20 mA current
BG6NLE This person is amazing! They're incredibly talented. Having another expert create an app would make it even better.
zhou2008 Can't I upload videos to the forum? I want to upload a video showing the results, but it says the file is too large. After reducing the file size, it still shows that this format is not supported.
BD4THR zhou2008 The original poster can try uploading a video of the modification scheme to Bilibili; here's the link.
BG8LGP God bless you 666 Could you please tell me which two pins on the CPU I should be using? I'd like to investigate the feasibility of adding a Bluetooth toggle menu in the firmware.
BG2EFX Wow... this is incredible! What? Are you saying you're not going to give the 8800 a chance at all?!
闽ICP备2021006864号-7
闽公网安备35020602002794号