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LED 's, R8 and R2 RX, R7 WD, R1 and R2 TX values
#1

Hi,
I've been thinking about the resistors in the RX, TX and WD where their values change depending on the LED's used. Would it be a good idea, where/when the LED's are not PCB mounted to replace the resistors with wire links and then solder the resistors into the wire links to the LED's. My thinking behind this is, that it will be easier to change the resistors in the wire links than it would be on the pcb especially as the solder pads are not that big and I would be afraid that resoldering would overtime would ware them out. I would interested on your thoughts about this.

regards
tyntop.
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#2

Personally I would not pay much attention for these led resistor values. Led might be a bit more brighter or darker, if you need to change it later. 1k is working well, as well as recommended 360. Important thing is to have resistor there, without it s... will happend. Pads are indeed quite small, resoldering might not work at all.
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#3

(25-02-2015, 17:30)tyntop Wrote:  Hi,
I've been thinking about the resistors in the RX, TX and WD where their values change depending on the LED's used. Would it be a good idea, where/when the LED's are not PCB mounted to replace the resistors with wire links and then solder the resistors into the wire links to the LED's. My thinking behind this is, that it will be easier to change the resistors in the wire links than it would be on the pcb especially as the solder pads are not that big and I would be afraid that resoldering would overtime would ware them out. I would interested on your thoughts about this.

regards
tyntop.

This is a perfectly valid suggestion that any builder may follow or not. Just don't forget to add the resistors, or the LED will lit but maybe just one time! Smile

Personally I also don't care to much about the value of those resistor, and use 1K for all of them. 1K resistors will be fine for almost all kind of LED's, even the blue ones.

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