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Published 20 hours ago • verified publisher icon luantty2
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将ws2812的output模式改为开漏输出，

我看到源码里nrf ws2812的驱动为pwm方式，但只有push& pull，能不能改成od呢？还是说需要手写对应的驱动？

ImMrMa avatar ImMrMa

LDO可以换更低功耗的芯片

现在的LDO功耗有点高，看手册有55uA，可以换UMW HT7833-A只有3uA输出有450mA而且还便宜，或者HT7333-3 1uA输出250mA

imEgo avatar imEgo

recipe for target 'candy_ble/pro_v1' failed

2 comment

![image](https://user-images.githubusercontent.com/16695501/92118504-27fa3400-ee29-11ea-9545-38addb2b7e29.png)

eos21 avatar eos21

Jlink failed to connect

1 comment

参考你的PCB做了一个87的PCB，板子焊接好后准备用Jlink下载bootloader，但nrf52840无法连接，显示failed to connect

eos21 avatar eos21

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