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1000 results for “bornach”
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That pressure sensing capsule found in most disposable #vape pens can very easily be turned into a #touchSensitive switch that is capable of switching currents high enough to activate small relays and solenoids
Simply slice the top off, exposing the edges of the inner and outer conductive cylindrical walls. Bridging the two walls with something no more conductive than human skin is sufficient to trigger it
#making #electronics #solenoid #eCigarette #VapePen #lithiumPolymer #battery
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That pressure sensing capsule found in most disposable #vape pens can very easily be turned into a #touchSensitive switch that is capable of switching currents high enough to activate small relays and solenoids
Simply slice the top off, exposing the edges of the inner and outer conductive cylindrical walls. Bridging the two walls with something no more conductive than human skin is sufficient to trigger it
#making #electronics #solenoid #eCigarette #VapePen #lithiumPolymer #battery
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That pressure sensing capsule found in most disposable #vape pens can very easily be turned into a #touchSensitive switch that is capable of switching currents high enough to activate small relays and solenoids
Simply slice the top off, exposing the edges of the inner and outer conductive cylindrical walls. Bridging the two walls with something no more conductive than human skin is sufficient to trigger it
#making #electronics #solenoid #eCigarette #VapePen #lithiumPolymer #battery
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That pressure sensing capsule found in most disposable #vape pens can very easily be turned into a #touchSensitive switch that is capable of switching currents high enough to activate small relays and solenoids
Simply slice the top off, exposing the edges of the inner and outer conductive cylindrical walls. Bridging the two walls with something no more conductive than human skin is sufficient to trigger it
#making #electronics #solenoid #eCigarette #VapePen #lithiumPolymer #battery
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This is the most deformed lithium polymer battery I've found on the street that still had a significant charge (3.5V)
It used to be cylindrical but now has a 11mm x 14mm cross section
I won't bother trying to discharge the even more damaged one also found on the street today. I intend to dump both in the battery recycling bins at Asda tomorrow.
#litter #lithiumPolymer #battery #recycling -
@mike805
I tried the #cascode #amplifier trick with the PC817 #optocoupler. IMSAI Guy only showed how the voltage of the transistor base affects the speed of the falling edge. But notice how the rising edge remains largely unaffected.By comparison, the common mode NPN #transistor amplifier with 150 ohm resistor across base-emitter, yielded noticeably sharper rising/falling edges
#electronics #oscilloscope -
@mike805
I tried the #cascode #amplifier trick with the PC817 #optocoupler. IMSAI Guy only showed how the voltage of the transistor base affects the speed of the falling edge. But notice how the rising edge remains largely unaffected.By comparison, the common mode NPN #transistor amplifier with 150 ohm resistor across base-emitter, yielded noticeably sharper rising/falling edges
#electronics #oscilloscope -
@mike805
I tried the #cascode #amplifier trick with the PC817 #optocoupler. IMSAI Guy only showed how the voltage of the transistor base affects the speed of the falling edge. But notice how the rising edge remains largely unaffected.By comparison, the common mode NPN #transistor amplifier with 150 ohm resistor across base-emitter, yielded noticeably sharper rising/falling edges
#electronics #oscilloscope -
@mike805
I tried the #cascode #amplifier trick with the PC817 #optocoupler. IMSAI Guy only showed how the voltage of the transistor base affects the speed of the falling edge. But notice how the rising edge remains largely unaffected.By comparison, the common mode NPN #transistor amplifier with 150 ohm resistor across base-emitter, yielded noticeably sharper rising/falling edges
#electronics #oscilloscope -
@mike805
I tried the #cascode #amplifier trick with the PC817 #optocoupler. IMSAI Guy only showed how the voltage of the transistor base affects the speed of the falling edge. But notice how the rising edge remains largely unaffected.By comparison, the common mode NPN #transistor amplifier with 150 ohm resistor across base-emitter, yielded noticeably sharper rising/falling edges
#electronics #oscilloscope -
@mike805
[IMSAI Guy] explains the cascode amplifier trick
https://youtu.be/APUhm2tsCiESee Figure 13 High bandwidth optocoupler configuration
https://www.onsemi.com/pub/Collateral/AND8273-D.PDFI might need to try that for comparison
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@mike805
[IMSAI Guy] explains the cascode amplifier trick
https://youtu.be/APUhm2tsCiESee Figure 13 High bandwidth optocoupler configuration
https://www.onsemi.com/pub/Collateral/AND8273-D.PDFI might need to try that for comparison
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@mike805
[IMSAI Guy] explains the cascode amplifier trick
https://youtu.be/APUhm2tsCiESee Figure 13 High bandwidth optocoupler configuration
https://www.onsemi.com/pub/Collateral/AND8273-D.PDFI might need to try that for comparison
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@mike805
[IMSAI Guy] explains the cascode amplifier trick
https://youtu.be/APUhm2tsCiESee Figure 13 High bandwidth optocoupler configuration
https://www.onsemi.com/pub/Collateral/AND8273-D.PDFI might need to try that for comparison
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@mike805
[IMSAI Guy] explains the cascode amplifier trick
https://youtu.be/APUhm2tsCiESee Figure 13 High bandwidth optocoupler configuration
https://www.onsemi.com/pub/Collateral/AND8273-D.PDFI might need to try that for comparison
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Testing the switching characteristics of cheapo PC817 optocouplers from Ebay.
555 timer astable is generating a 37kHz square wave test input.
Rise/fall time is way out of spec for use in #MIDI. But the recommended component, 6N138, is much more expensive.Instead have the #optocoupler drive the base of an NPN #transistor and by adding appropriate resistors, I get much improved switching speeds. Is this good enough for a MIDI input circuit? #electronics #oscilloscope #breadboard
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@forensicgarlic
The extraction of clean training data without the toxicity was very likely done by lots of low paid humans in the global gig economy. So there's still an ethical debate to be had there.But once given cleaned up human generated training examples, the #LLM does provide a filtered detoxified simulation of a Stackoverflow-like back-and-forth discussion of various source code idioms.
This is why I'm hopeful that #OpenAssistant might one day be an ethical alternative to #ChatGPT
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Brian Lough creates Easter egg hunt for his kids using AM radios and Butluni's ESP32 AM transmitter project code
https://youtu.be/QpjLgKzrn44 -
Look at how small the #lithiumPolymer battery is in relation to the size of the disposable #VapePen
1.48Wh (400mAh 3.7V)Might be useful should I need to replace another battery in some wireless device, assuming I can recharge it - voltage is reading very low 1.2V
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Look at how small the #lithiumPolymer battery is in relation to the size of the disposable #VapePen
1.48Wh (400mAh 3.7V)Might be useful should I need to replace another battery in some wireless device, assuming I can recharge it - voltage is reading very low 1.2V
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Look at how small the #lithiumPolymer battery is in relation to the size of the disposable #VapePen
1.48Wh (400mAh 3.7V)Might be useful should I need to replace another battery in some wireless device, assuming I can recharge it - voltage is reading very low 1.2V
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Look at how small the #lithiumPolymer battery is in relation to the size of the disposable #VapePen
1.48Wh (400mAh 3.7V)Might be useful should I need to replace another battery in some wireless device, assuming I can recharge it - voltage is reading very low 1.2V
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Look at how small the #lithiumPolymer battery is in relation to the size of the disposable #VapePen
1.48Wh (400mAh 3.7V)Might be useful should I need to replace another battery in some wireless device, assuming I can recharge it - voltage is reading very low 1.2V
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@haritulsidas
Might help if we didn't send perfectly rechargeable #lithium batteries straight to land fill after only one charge
https://news.sky.com/story/millions-of-disposable-vapes-containing-valuable-metal-ending-up-in-landfill-12652211https://www.itv.com/news/2022-11-14/where-do-disposable-vapes-end-up-when-theyre-thrown-away
#vape #eCigarette #Disposable -
@scrumble_eggs
Every #TwitterMigrant when told to put politics behind a #ContentWarning -
Something must be wrong with that Emergency Alert test thing on my phone. The alarm was quite loud but the voice message that followed was barely audible.
#EmergencyAlertTest #EmergencyAlert -
Oh no! Free #lithiumPolymer batteries appearing in the wild in Canada too!
https://youtu.be/lidMQu3S2NU
Haven't seen either of those in the UK not even under a different brand name. [pileofstuff] measured 4V on the battery from the rechargeable #eCigarette, 3.3V on the non-rechargeable #VapePen -
Oh no! Free #lithiumPolymer batteries appearing in the wild in Canada too!
https://youtu.be/lidMQu3S2NU
Haven't seen either of those in the UK not even under a different brand name. [pileofstuff] measured 4V on the battery from the rechargeable #eCigarette, 3.3V on the non-rechargeable #VapePen -
Oh no! Free #lithiumPolymer batteries appearing in the wild in Canada too!
https://youtu.be/lidMQu3S2NU
Haven't seen either of those in the UK not even under a different brand name. [pileofstuff] measured 4V on the battery from the rechargeable #eCigarette, 3.3V on the non-rechargeable #VapePen