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RF433AnalyserView Instructable »
Wifi CalipersView Instructable »
Yes. That is certainly possible.You would just feed the amp and speaker wires through the holes in the box rather than mount the speaker connectors.
ILumos Remote ControlView Instructable »
The 12V battery as shown seems to be made up of LIPO cells (3 pairs in series). LIPO cells need to be charged carefully with circuitry that is LIPO aware and ensures there is no risk of overcharging.
Rotary Encoder ButtonView Instructable »
The Github download contained a jpg of the schematic. I hav enow added the fritzing source file for this.
NodeMCU ESP8266 unit is good for development as it has built in usb serial connection for easy downloading of code. They can be used to run the real system but I use ESP-12F modules for that. They are smaller, cheaper and also have a lower deep sleep current when that is used in battery applications.A NodeMCU would draw a few mA even when sleeping which would drain a 18650 battery in about a month rather than the year for a ESP-12F. However, they do need soldering to use and you need a ESB to serial converter to initially program them. Once they have been programmed once they can then be updated over wifi.ESP8266 wifi range is very good. I don't think you will have a problem with that distance and wall.
ServoThermometerView Instructable »
Based on measurements over a month, I reckon I will get well over a year between charges
Battery Powered Plant WateringView Instructable »
Battery LED Strip With Magn...View Instructable »
Infinity Illusion Mirror Clock
ESP8266 DfPlayer Audio PlayerView Instructable »
Rainbow DiceView Instructable »
That module is an SPI to Ethernet interface. It can't be used as a microUSB to lan converter as described. You can tie it into the SPI on the GPIO pins as described here. https://www.instructables.com/id/Super-Cheap-Ethernet-for-the-Raspberry-Pi/Once it is working the camera software would be fine with that.
If you want it POE but are going to use wifi rather than the wired connection for the network connection then you need the buck converter but don't need the LAN USB adapter. The buck converter would just be used to convert the higher voltage on the POE cable to 5V to run the Pi.If the cable has the network wiring in it rather than just power then I think it is nicer to have a wired connection as described rather than wifi.
If you are using usb power then you don't need the buck converter.The wired LAN version as described uses power over Ethernet. This uses a higher voltage supply (e.g. 12V) on the unused pairs in the cable and the buck converter is used to derive a 5V supply for the Pi. By using a higher voltage and a buck converter this way then the current in the ethernet cables is significantly reduced allowing much longer cable runs without voltage drop problems.
Yes. The 3 sided version suited my purpose. It would be easy to change this to a three by four stack in the SCAD. Making it a row of twelve makes it quite large. Let me know if that interests you and I could update the SCAD and STL.The A+B is slightly tricky as to do it with 1 switch as it would need a fairly special switch. One could do it more easily with 2 switches like I used where each enabled 1 output and if both were switched then you would get A+B.
Ethernet EconomiserView Instructable »
Two Way Speaker SwitchView Instructable »
Here in UK the Zero (not ZeroW) has gone up to UKP4.80. Shipping in UK does add but is not so bad if one is buying other stuff as well. One can significantly lower the cost of the camera by getting the V1 type camera off eBay with Zero cable included. The V1 doesn't have the same still image resolution as the V2 but video is same and still resolution is still good.
One can use the ZeroW instead if one wants to do it wirelessly and then you don't need the USB ethernet adapter. Personally I prefer to use a wired connection as one has to get power there anyway and using the power over ethernet gives a 1 cable neat solution.There are two main suppliers in UK (Pimoroni and PiHut). Both offer Europe shipping at reasonable cost and fast delivery. FOr example Pimoroni to Germany UKP 4 and it is by weight so you can get multiple items for 1 fee.
Relay Module Input ModifiedView Instructable »
Door Bell Push and Temperat...View Instructable »
Security Panel Extender ESP...View Instructable »
ESP-12 Infra Red BlasterView Instructable »
Zero Security CameraView Instructable »