| 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 104 | 122 | 200 | 121 | 228 | 625 | 1307 | 783 | 1011 | 556 |
We needed some decorations for congress and I remembered that I have these PCBs flying around somewhere. Too bad I couldn't find all 50 PCBs, so I came up with making some with LED strings as well - with folding the strip carefully, you just have to solder the cable on.
since the IS31FL3733 is not recommended for new designs, why not redesign the LED PCBs with the IS31FL3741. gotta research that - would mean more LEDs (117 instead of 64).
According to my table, I would get 2 more rows around the cube with 106 LEDs.
There's only one ADDR pin here, so you can have a maximum of 4 panel adresses, but definitely managable to address half a cube with the RP2040 that has two I2C channels.
since the IS31FL3733 is not recommended for new designs, why not redesign the LED PCBs with the IS31FL3741. gotta research that - would mean more LEDs (117 instead of 64).
According to my table, I would get 2 more rows around the cube with 106 LEDs.
There's only one ADDR pin here, so you can have a maximum of 4 panel adresses, but definitely managable to address half a cube with the RP2040 that has two I2C channels.
since the IS31FL3733 is not recommended for new designs, why not redesign the LED PCBs with the IS31FL3741. gotta research that - would mean more LEDs (117 instead of 64).
According to my table, I would get 2 more rows around the cube with 106 LEDs.
There's only one ADDR pin here, so you can have a maximum of 4 panel adresses, but definitely managable to address half a cube with the RP2040 that has two I2C channels.
since the IS31FL3733 is not recommended for new designs, why not redesign the LED PCBs with the IS31FL3741. gotta research that - would mean more LEDs (117 instead of 64).
According to my table, I would get 2 more rows around the cube with 106 LEDs.
There's only one ADDR pin here, so you can have a maximum of 4 panel adresses, but definitely managable to address half a cube with the RP2040 that has two I2C channels.
since the IS31FL3733 is not recommended for new designs, why not redesign the LED PCBs with the IS31FL3741. gotta research that - would mean more LEDs (117 instead of 64).
According to my table, I would get 2 more rows around the cube with 106 LEDs.
There's only one ADDR pin here, so you can have a maximum of 4 panel adresses, but definitely managable to address half a cube with the RP2040 that has two I2C channels.
First off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpgFirst off all, I am very sorry for giving you a bag with freely flying resistors in it and that you have to read the value in the darkness of Congress! In parts this is @Alex 's fault, he once gave me bags of 0805 resistors and I recycled them in this projects, as I only want to use 0603 parts most of the time.
Anywho, there might be a 330k resistor in there instead of a 390k resistor, so according to this fine website, it should blink 3 times per second, instead of 2 times.
https://www.digikey.de/en/resources/conversion-calculators/conversion-calculator-555-timer
Here's the parts list:
The 555 timer has a chamfer to indicate the side of the first pin.
Btw checkout Berlin's very fine sewage report:
https://data.lageso.de/lageso/corona/corona.html#abwasser
https://cdn.hackaday.io/images/2316261672411636240.jpg
The first version was doomed from the beginning, since I had no diodes on the keys. I also swapped the USB micro socket with a JST-SH socket and made a small adapter board instead. Let's see how far I get this time.
https://cdn.hackaday.io/images/6995871700155584044.pngThe first version was doomed from the beginning, since I had no diodes on the keys. I also swapped the USB micro socket with a JST-SH socket and made a small adapter board instead. Let's see how far I get this time.
https://cdn.hackaday.io/images/6995871700155584044.pngThe first version was doomed from the beginning, since I had no diodes on the keys. I also swapped the USB micro socket with a JST-SH socket and made a small adapter board instead. Let's see how far I get this time.
https://cdn.hackaday.io/images/6995871700155584044.pngThe first version was doomed from the beginning, since I had no diodes on the keys. I also swapped the USB micro socket with a JST-SH socket and made a small adapter board instead. Let's see how far I get this time.
https://cdn.hackaday.io/images/6995871700155584044.pngThe first version was doomed from the beginning, since I had no diodes on the keys. I also swapped the USB micro socket with a JST-SH socket and made a small adapter board instead. Let's see how far I get this time.
https://cdn.hackaday.io/images/6995871700155584044.png