ESP8266 Community Forum

- Mon May 18, 2015 11:39 am #17760 Hi Clement, thanks for the rational, I think if you consider the fact that this device is non battery operated and is expected to sink 7 amps of current through the Mosfet, then a saving of even 20ma or so is not worth even considering...

Look forward to the new board though

Dans

- Tue May 19, 2015 4:20 am #17834 Considering Vin is 12V, Vout is 3.3V, and the ESP uses around 200mA, a linear regulator would have to dissipate (12-3.3V) * 0.2A = 1.74Watts of power through heat.

That 1.74W would be drawn almost continuously, which seems like an awful waste to me. In the Netherlands the cost of electricity is around 0.22 cents per kWh, so using a linear regulator would cost €3.30 per year in heat generation. That means you can almost buy 10 DC converter modules per year from the cost savings of not using linear regulators

- Tue May 19, 2015 5:09 am #17839 Very Nice Project - Thank You for sharing.

* Any chance of a 3 channel version for RGB LED strips ?

* Any plans to sell PCB's, built up modules ?

- Thu May 21, 2015 2:43 am #18034 Someone on Hackaday also said he'd love an RGB version, I hope that I can get around to making one. I'll first polish out this module and its software, though.

As for selling these modules pre-assembled, I don't plan on doing that at the moment. In order to make that interesting, they would have to be a lot more expensive than the $5 it costs in parts, and I'd find that a terrible shame. I don't want to sell things that are as expensive as the Belkin nonsense already out there