The items can be ordered entirely in Germany. All of this is needed:
- ESP32 Wemos Lolin Board (There are two different variants of the board. The larger board has the reset and boat button on top. The smaller board on the back.)
- SPI Reader
- Micro SD Card
- Temperature sensor DS18B20. There are different variants. I use the sensors in the stainless steel package. It is available with 1 meter and 3 meters of cable length.
- Audio Splitter
- 4.7KOhm Resistance
- Cable/litz wire
- Screws for the case 2.2X6.5. It can also be used a smaller diameter than 2.2. I think 2.0 is OK too. The length of 6.5 is already ideal for the case.
- The case: The STL file can be purchased through the reseller Digistore24. I have printed the case at 3DHubs in PLA. There are different colors to choose, with difference in prices.
I had ordered individual components from Alibaba Express in the Far East. This takes a little longer but is also cheaper. As shipping, I would click on Ali Express Standard Shipping. Personally, beside the SPI Reader, I ordered everything from Alibaba Express. The duty free allowance in Germany is 22 euros (approx. 25$) and is usually delivered directly to the mailbox.
|ESP 32 Wemos Lolin-Search ‘wemos esp32 oled’||8$|
|SPI Reader||2$ – I still need to test|
|DS18B20||8$ – 5×1 metres
14$ – 10×1 metres
24$ – 20×1 metres
|Micro SD Card||5.60$|
|Wire cutter/side cutter-search ‘electric wire cutter’||2$|
I know it is implausibly to buy these items in Germany, but sorry I have no other source of supply.
|ESP 32 Wemos Lolin-Search ‘ESP WROOM 32 Wemos Lolin’||Large (16€) board version|
|DS18B20||12€ – 5×1 metres|
|Screws 2.2X6.5 TX6||5€|
|KSS 35||Blade plug, 3.5mm, stereo, 3-pol||0.30€|
|EBS 35||Blade built-in jack, 3.5mm, stereo||0.30€|
|AVK 119Q-50||Audio cable, 3.5mm stereo clinch plug, 5m||1.55€|
|1/4W 4,7K||Resistance, coal layer, 4.7 kOhm, 0207, 250 mW, 5%||0.10€|