110v-230v AC to Mysensors PCB board
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Nice find GertSanders ... I am planning to use esp8266 which runs on 3.3 volt... best fit ..
If we use this we may have to drop few things from 5.5 board right?
Like no need of 5v - 3.3 converter
change relay to match 3.3v like this http://vod.ebay.com/vod/FetchOrderDetails?qu=1&itemid=401045943120&transid=522355020027&viewpaymentstatus=Anyexpert around? do we need to remove anythingelse (any capacitor?)
@toabhishekverma said:
change relay to match 3.3v like this http://vod.ebay.com/vod/FetchOrderDetails?qu=1&itemid=401045943120&transid=522355020027&viewpaymentstatus=
That's a link to your shopping cart, we don't have access to...
I'm interested in the relay, can you post a working link? -
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I use the same SONGLE relays:
http://www.aliexpress.com/item/5pcs-SRD-03VDC-SL-C-3V-relay-5-feet-10A/32453591000.html
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@GertSanders thanks for this link.
So do you have working prototype? what board are you using? I am in middle of finalising components and trying to finalise design. With little knowledge of electronics my progress is slow.
Also for 220 to 3.3v there is another converter from Olimex https://www.olimex.com/Products/Power/PWR-90-240V-3.3V0.8A/
overall its abit smaller then Hi-Link... Hi-Link abit better because all covered and less dangerous.Please share if you have any design finalised.
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I use the same SONGLE relays:
http://www.aliexpress.com/item/5pcs-SRD-03VDC-SL-C-3V-relay-5-feet-10A/32453591000.html
@GertSanders @toabhishekverma Do you have the dimensions and/or holding resistance?
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Sorry I didnt get your questions .. do you mean dimensions of 220-3.3v converter. Here they are.
output 2.5W 3.3V/0.8A +-0.2V size: 30x20x18mmI am not from electronics background so didn't get what holding resistance means?
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Sorry I didnt get your questions .. do you mean dimensions of 220-3.3v converter. Here they are.
output 2.5W 3.3V/0.8A +-0.2V size: 30x20x18mmI am not from electronics background so didn't get what holding resistance means?
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@Yveaux Still no idea about it. Check link if you get something from it. what I know is it can bear up to 10A current and can be controlled using 3v .... my order still in shipping so don't know more then that.
@toabhishekverma Ah, ok. Didn't know they were still in transit.
Maybe @GertSanders has them 'on stock'?http://yveaux.blogspot.nl
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@toabhishekverma Ah, ok. Didn't know they were still in transit.
Maybe @GertSanders has them 'on stock'? -
@toabhishekverma Ah, ok. Didn't know they were still in transit.
Maybe @GertSanders has them 'on stock'?@Yveaux No, also still waiting for the order to arrive. But a coil resistance of 20-25 Ohm means driving the coil with a FET. Not directly from a atmega328 pin.
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Another source :
50Pieces/Lot JRC-21F 4100 3V DC 6 Pins Miniature PCB Relay Brand New
http://s.aliexpress.com/MNVv2myE@Porky6666 : only switches 3A, SONGLE relay can switch 10A.
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@Yveaux No, also still waiting for the order to arrive. But a coil resistance of 20-25 Ohm means driving the coil with a FET. Not directly from a atmega328 pin.
@GertSanders said:
@Yveaux No, also still waiting for the order to arrive. But a coil resistance of 20-25 Ohm means driving the coil with a FET. Not directly from a atmega328 pin.
Correct. Here's how I wired the songle relay on my Lithium Ion Sensor PCB:
@GertSanders said:
@Porky6666 : only switches 3A, SONGLE relay can switch 10A.
I wouldn't trust both of them when it comes to switching high amp devices over 3A. I think there is a reason no german electronics shop sells songle relays :smile:
Plus, relays from an electronics shop in your country might cost the same than the songle relays or will just be a tiny bit more expensive.
At least this is true for 5V relays. 3V relays are hard to find (at least in germany)
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@GertSanders said:
@Yveaux No, also still waiting for the order to arrive. But a coil resistance of 20-25 Ohm means driving the coil with a FET. Not directly from a atmega328 pin.
Correct. Here's how I wired the songle relay on my Lithium Ion Sensor PCB:
@GertSanders said:
@Porky6666 : only switches 3A, SONGLE relay can switch 10A.
I wouldn't trust both of them when it comes to switching high amp devices over 3A. I think there is a reason no german electronics shop sells songle relays :smile:
Plus, relays from an electronics shop in your country might cost the same than the songle relays or will just be a tiny bit more expensive.
At least this is true for 5V relays. 3V relays are hard to find (at least in germany)
@HenryWhite said:
I wouldn't trust both of them when it comes to switching high amp devices over 3A.
I agree, I plan to switch lights, so my preference goes to the 10A model, just to be sure. I have used the SONGLE 5V versions, and none have ever given me reason to doubt their quality. Since I found a 3V3 powersupply I want to try building a full 3V3 board. Should be fun.
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@HenryWhite why do we need D1 Diode (if i am write) in that circuit? do this circuit will not work without diode?
(sorry dont know much about electronics) -
@HenryWhite why do we need D1 Diode (if i am write) in that circuit? do this circuit will not work without diode?
(sorry dont know much about electronics)@toabhishekverma https://en.m.wikipedia.org/wiki/Flyback_diode
in short: It is needed to protect the NPN transistor from damage.
The circuit will work without diode, But eventually damage the transistor. -
@GertSanders Have you breadboarded your 3.3V design? I'm a bit worried that removing linear converter will impair the performance of the our fussy nRF clones due to less power supply ripple rejection. I think those going for the ESP8266 are better off.
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Anyone has an idea where to source the 5.5V varistor? I received a bunch from AliExpress following which seem to be broken.
I found this link http://www.farnell.com/datasheets/575651.pdf. However, there seem to be a bunch of 5.5 V varistor. Can anybody help me figuring out the right ones?
