ZeFerby
ZeFerby
@zeferby
Reputable Member
Joined: 2019-09-20 3:13 pm
Last seen: 2021-08-18 7:53 am
Topics: 0 / Replies: 381
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RE: Fritzing + images ?

@sumanta Thanks. Actually because of Covid + new house, I had to ditch all my electronics stuff in cardboard boxes more than ayear ago. I'm only no...

1 year ago
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RE: Problem uploading sketch.

@john40131 Also John try to make some basic tests to validate we have all HIGH/LOW right : does everything look ok (all LEDs off, nothing coming...

2 years ago
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RE: Problem uploading sketch.

@john40131 Re-reading the sketch, I think you'll have to reverse all the conditions, and initializations, because your original sketch was based on ...

2 years ago
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RE: Problem uploading sketch.

@john40131 Yes John, sorry I didn't update all comments consistently. Basically from the full-blown version, we only keep Expanders A and C, A bei...

2 years ago
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RE: Problem uploading sketch.

@john40131 Ok John, then you may want to try this stripped-down version for 1x PCF8574 with buttons + 1x PCF8574 with LEDs I think you'll have...

3 years ago
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RE: Problem uploading sketch.

@john40131 Yes John, that's the way i wrote the sketch, with all pins for buttons on the first 2 expanders, and the LEDs on the remaining 2 expand...

3 years ago
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RE: Problem uploading sketch.

@john40131 Hi John, those I have are basic ones from the french Amazon web site and their chips are marked PCF8574T. If you search PCF8574 on your a...

3 years ago
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RE: Problem uploading sketch.

John, I think you want this new sketch to be in his own sub-directory in your sketch folder (give it the same name as the sketch), while you may have ...

3 years ago
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RE: Problem uploading sketch.

@john40131 Ok, here is an example for 4x PCF8574, using the IOAbstraction library (Zip to be downloaded from ) : Remember to check the I2C addre...

3 years ago
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RE: Problem uploading sketch.

@john40131 Hi John, first : if you want to go the array route, this sketch should be equivalent to yours :

3 years ago
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RE: BerryBoot Pi from SSD (Multiboot ?)

Hello Pi-men, just to let you know in case some of you have issues with USB3 SATA adapters (or memory stick) not properly supporting the uas mode (U...

3 years ago
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RE: Problem uploading sketch.

@john40131 Hi John, sorry I've been away a few weeks... I found this sketch I had from last december, that uses a pair of PCF8574, using the IO Ab...

3 years ago
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RE: Monitor on Non Stop Energy Save Mode

@anibal hello, i come back to the forums after a few weeks... I have seen some older Samsung screens (they were monitors, not TVs) working fine with...

3 years ago
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RE: Problem uploading sketch.

@john40131 Hi John ! Attach/Detach is for the basic Arduino Servo library, but don't apply to PCA9685 setups. I'll look for a solution to have th...

3 years ago
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