leds
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leds [2015/12/20 23:05] schneider [Will the LEDs do something as soon as I switch the rad1o on?] |
leds [2015/12/20 23:10] schneider |
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| There are spaces for capacitors which are recommended, but the LEDs usually work fine without. | There are spaces for capacitors which are recommended, but the LEDs usually work fine without. | ||
| - | **Do not bridge all three pads of each transistor as this will create a short!** | + | == Which way around do the LEDs go? |
| - | Example with all possible LEDs and correct bridges on two of the three transistor pins (for power supply) soldered (LEDs green, bridges red): | + | If you have a close look at an LED, you'll notice one corner is marked by having a bit cut off. |
| - | {{ :led3.png?100 |}} | + | In the photo below, the pads where this corner needs to be are marked in red: |
| - | Example with only two LEDs at the antenna, then the bridges at the lower part of the board aren't needed but you need to add bridges for transporting the signal (ignore the yellow arrows): https://twitter.com/michaelossmann/status/629779084801781760 | + | {{::leds.png?600|}} |
| - | Sorry for that, but wouldn't it be boring otherwise? :-P | + | == How to supply the LEDs with power |
| - | == Which way around do the LEDs go? | + | **Do not bridge all three pads of each transistor as this will create a short!** |
| - | If you have a close look at an LED, you'll notice one corner is marked by having a bit cut off. | + | Example with all possible LEDs and correct bridges on two of the three transistor pins (for power supply) soldered (LEDs green, bridges red): |
| - | In the photo below, the pads where this corner needs to be are marked in red: | + | {{ :led3.png?600 |}} |
| - | {{::leds.png?200|}} | + | Example with only two LEDs at the antenna, then the bridges at the lower part of the board aren't needed but you need to add bridges for transporting the signal (ignore the yellow arrows): https://twitter.com/michaelossmann/status/629779084801781760 |
| + | Sorry for that, but wouldn't it be boring otherwise? :-P | ||
| == I soldered one LED but it doesn't work? | == I soldered one LED but it doesn't work? | ||
| All LEDs are on the same data line, if they are not all soldered on, the data line is interrupted. You can either solder on all LEDs or bridge the data line. The image below shows where the data line goes, red lines are on the PCB, green lines are usually closed by LEDs. If you are not filling all LED spots, you have to fill the missing connections with wire. | All LEDs are on the same data line, if they are not all soldered on, the data line is interrupted. You can either solder on all LEDs or bridge the data line. The image below shows where the data line goes, red lines are on the PCB, green lines are usually closed by LEDs. If you are not filling all LED spots, you have to fill the missing connections with wire. | ||
| - | {{::leds-data.png?200|}} | + | {{::leds-data.png?600|}} |
| == Will the LEDs do something as soon as I switch the rad1o on? | == Will the LEDs do something as soon as I switch the rad1o on? | ||
leds.txt · Last modified: 2015/12/20 23:10 by schneider
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