Pugwash
@pugwash
Sorcerers' Apprentice
Joined: 2019-06-15 2:25 pm
Last seen: 2022-01-09 10:55 am
Topics: 75 / Replies: 848
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RE: I would like help with a door lock system and a knight rider sketch also

@sfepoxy2020 I put some sketches and setup description on my GitHub page, based on using two daisy-chained 74HC595 bit shifters. There are also a co...

3 years ago
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RE: Servo not sweeping full 180º

I bought some SG90s on eBay and none of them has a full 180° sweep. If that is any comfort. You may have more luck with more expensive servos!

3 years ago
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RE: Controlling AC devices with an Arduino episode

I managed to find another document that has a much better explanation of Ex basics, including the differences between the USA & Canada, and Europe...

3 years ago
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Replies: 2
Views: 1570
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RE: Help with transistors

@garnold It is basically down to the question "how much current am I running through the transistor?". It sounds very much like you need a MOSFET ...

4 years ago
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RE: A $5 Function Generator with ESP32

Further testing revealed that both square and triangle wave frequencies were quite accurate (less than 0.5%) but the sine wave frequency was off to ab...

4 years ago
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Replies: 7
Views: 11975
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RE: BME/BMP 280

@lesl A rough and ready solution may be to use 2 BME280s. One to collect the actual air pressure at ground level and pass this on to the second BME2...

4 years ago
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RE: Workshop revamp

@dronebot-workshop How about just buying the 2x2 and using a biscuit jointer (about $100) and plenty of wood glue! Just make sure you have enough ...

4 years ago
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RE: Everything you wanted to know about ESP32 but were too afraid to ask!

@byron I picked up the following benchmark sketch from Ralph Bacon's GitHub repository and was wondering if you would run it on the Teensy board and...

4 years ago
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RE: Everything you wanted to know about ESP32 but were too afraid to ask!

@byron I will have to look up the Teensy boards, thanks for the tip! In practice, you tend to stick with the stuff you already have in your worksh...

4 years ago
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RE: Everything you wanted to know about ESP32 but were too afraid to ask!

@byron My primary motivation for the above post was just to make those starting out with the ESP32 aware that FreeRTOS exists. I bought some ESP32...

4 years ago
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RE: Working with different IC's in one circuit

@wolfgangw I have never used an ATTiny, but according to the pinout drawings, they are capable of both I2C and SPI. So I don't see any problems wi...

4 years ago
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RE: Working with different IC's in one circuit

@WolfgangW You haven't specified how you wish to communicate between the µcontrollers. I2C or SPI or something else? I would not let the 16MHz to ...

4 years ago
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