Shopping list
Bom
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.
- Plug
- Audio Splitter
- Jack
- 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 Hubs in PLA. There are different colors to choose, with difference in prices.
Alibaba Express
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$) and is usually delivered directly to the mailbox.
| Description | Price |
|---|---|
| ESP 32 Wemos Lolin-Search ‘wemos esp32 oled’ | 8$ |
| 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$ |
| Audio splinters | 3$ |
| Ribbon cable | 3$ |
| 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.
Amazon
| Description | Price |
|---|---|
| ESP 32 Wemos Lolin-Search ‘ESP WROOM 32 Wemos Lolin’ | Large (16€) board version |
| SPI Reader | 4€ |
| DS18B20 | 12€ – 5×1 metres |
| Cable/litz wire | 11€ |
| Screws 2.2X6.5 TX6 | 5€ |
| Audio splitter | 8€ |
| Soldering station | 33€ |
| Solder | 6€ |
Reichelt
| Article | Description | Price |
|---|---|---|
| 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€ |