{"id":1149,"date":"2019-03-12T22:48:28","date_gmt":"2019-03-12T21:48:28","guid":{"rendered":"https:\/\/www.honey-pi.de\/?p=1149"},"modified":"2025-02-24T18:35:23","modified_gmt":"2025-02-24T17:35:23","slug":"teil-1-einbau-honeypi-in-ein-gehaeuse","status":"publish","type":"post","link":"https:\/\/honey-pi.de\/en\/teil-1-einbau-honeypi-in-ein-gehaeuse\/","title":{"rendered":"Part 1: Installation of HoneyPi in a housing"},"content":{"rendered":"\n

type 158x90x65mm clear waterproof plastic <\/strong><\/p>\n\n\n\n

That’s what it looks like when it’s done:<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_232032564.jpg\"<\/figure><\/div>\n\n\n\n

Re 1: Total material costs for electronics with me approx. 64\u20ac (+ possibly resulting forwarding expenses)<\/p>\n\n\n\n
Prize<\/td>Amount<\/td>Sum<\/td>Type<\/td><\/tr>
15,50 \u20ac<\/td>1<\/td>15,50 \u20ac<\/td>Raspi Zero<\/td>reichelt<\/td>Raspberry Pi Zero WH v.1.1, 1 GHz, 512 MB RAM, WLAN, BT<\/a><\/td><\/tr>
3,95 \u20ac<\/td>1<\/td>3,95 \u20ac<\/td>SD-Card 4GB<\/td>reichelt<\/td>MicroSDHC-Speicherkarte 4GB – Intenso Class 10<\/a><\/td><\/tr>
10,00 \u20ac<\/td>1<\/td>10,00 \u20ac<\/td>Surf Stick<\/td>Amazon<\/td>gebraucht<\/td>Huawei E3531 SurfStick<\/a><\/td><\/tr>
2,00 \u20ac<\/td>1<\/td>2,00 \u20ac<\/td>micro USB to A jack cable<\/td>reichelt<\/td>USB 2.0 Kabel, Micro B Stecker auf A Buchse, 0,1 m<\/a><\/td><\/tr>
0,79 \u20ac<\/td>1<\/td>0,79 \u20ac<\/td>Socket connector for adapter board<\/td>reichelt<\/td>Buchsenleisten 2,54 mm, 2X20, gerade<\/a><\/td><\/tr>
1,00 \u20ac<\/td>1<\/td>1,00 \u20ac<\/td>Adapter board empty (unassembled) from China<\/td>china<\/td>Siehe Kapitel 3<\/td><\/tr>
1,50 \u20ac<\/td>1<\/td>1,50 \u20ac<\/td>Grove plug for PCB (10pcs)<\/td>reichelt<\/td>Arduino – Grove Universal-Buchse, 4-Pin (10er-Pack)<\/a><\/td><\/tr>
3,43 \u20ac<\/td>1<\/td>3,43 \u20ac<\/td>am2320 Temp-sensor with Grove plug with housing<\/td>ebay<\/td>AM2320B Digital Temperatur und Humidity Sensor modul SHT21 AM2301 <\/a><\/td><\/tr>
0,02 \u20ac<\/td>3<\/td>0,06 \u20ac<\/td>10k pull-up resistor for AM2320 (best SMD 0805)<\/td>reichelt<\/td>3st bestellen falls zwei runterfallen<\/td>SMD-Widerstand, 0805, 10 kOhm, 125 mW, 1%<\/a><\/td><\/tr>
8,00 \u20ac<\/td>1<\/td>8,00 \u20ac<\/td>DS18B20 Sensor with Grove connector<\/td>mouser<\/td>seed 101990019 <\/a><\/td><\/tr>
2,22 \u20ac<\/td>1<\/td>2,22 \u20ac<\/td>HX711 circuit board<\/td>Amazon<\/td>china<\/td>HX711 Module Weighing Sensor<\/a><\/td><\/tr>
1,10 \u20ac<\/td>1<\/td>1,10 \u20ac<\/td>Shrink tubing 4mm with hot melt adhesive<\/td>reichelt<\/td>Schrumpfschlauch mit Innenkleber, \u00d84,0mm<\/a><\/td><\/tr>
4,81 \u20ac<\/td>1<\/td>4,81 \u20ac<\/td>Waterproof junction box – SODIAL(R) Waterproof kalr Plastic cover Electronic junction box 158x90x60mm<\/td>Amazon<\/td>CHINA<\/td>Wasserdichte Anschlussdose<\/a><\/td><\/tr>
1,39 \u20ac<\/td>1<\/td>1,39\u20ac<\/td>SODIAL(R) 3A\/3V-250V push button push button push switch 16mm nickel-plated brass<\/td>Amazon<\/td>CHINA<\/td>3A\/3V-250V Drucktaster Taster<\/a><\/td><\/tr>
0,91 \u20ac<\/td>1<\/td>0,91 \u20ac<\/td>LED for housing installation<\/td>reichelt<\/td>LED, bedrahtet, 5 mm, rot, Au\u00dfenrefl., \u00d88 mm, 15 mcd, 50\u00b0<\/a><\/td><\/tr>
0,03 \u20ac<\/td>1<\/td>0,03 \u20ac<\/td>330Ohm resistor for LED<\/td>reichelt<\/td>D\u00fcnnschichtwiderstand, axial, 0,6 W, 330 Ohm, 1%<\/a><\/td><\/tr>
1,60 \u20ac<\/td>1<\/td>1,6 \u20ac<\/td>330Ohm resistor for LED<\/td>reichelt<\/td>Schrumpfschlauch mit Innenkleber, \u00d88,0mm<\/a><\/td><\/tr>
0,22 \u20ac<\/td>5<\/td>1,10 \u20ac<\/td>Cable glands M16 (unit price approx. 0.2\u20ac) Nut for cable gland unit price approx. 0.1\u20ac) <\/td>reichelt<\/td>Metrische Kabelverschraubung, 4,5 – 10,0 mm, M16, grau<\/a><\/td><\/tr>
0,07 \u20ac<\/td>5<\/td>0,35 \u20ac<\/td>Cable glands M16 (unit price approx. 0.2\u20ac) Nut for cable gland unit price approx. 0.1\u20ac) <\/td>reichelt<\/td>Metrische Gegenmutter f\u00fcr MBF 16, M16, grau<\/a><\/td><\/tr>
3,70 \u20ac<\/td>1<\/td>3,70 \u20ac<\/td>5St. 50cm Grove Kabel 5er Pack<\/td>reichelt<\/td>Arduino – Grove Universal-Kabel, 4-Pin, 50cm, fixiert (5 St.)<\/a><\/td><\/tr><\/tbody><\/table>\n\n\n\n

Under https:\/\/www.reichelt.de\/my\/1554810<\/a><\/a> I have also created a shopping cart, which contains all articles mentioned. For the table see the end of the article.<\/p>\n\n\n\n

Under https:\/\/www.reichelt.de\/my\/1554814<\/a> only the articles are contained, which I needed for a stick balance. So none that are included in the parts list with optional\/alternative.<\/p>\n\n\n\n

Mounting into the housing<\/h1>\n\n\n\n

Empty case (undrilled) bought on ebay for approx. 6,50\u20ac<\/p>\n\n\n\n

https:\/\/www.ebay.de\/itm\/158x90x65mm-klar-wasserdicht-Kunststoff-elektronische-Projekt-Box-Geh\u00e4use\/263994748093<\/a><\/p>\n\n\n\n

Delivery time from China approx. 3 weeks!<\/p>\n\n\n\n

First, drill the holes in the LED\/button housing and the M16 cable glands.<\/p>\n\n\n\n

For indication I use a height gauge<\/a> (Amazon ca 45\u20ac). But it also works with a scale (0\u20ac).<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Here are the positions of the holes for the M16 cable gland<\/a>s<\/p>\n\n\n\n

Later this side will be installed on the long side towards the inside of the car.<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_222705310.jpg\"<\/figure>\n\n\n\n

Drill holes for buttons<\/a> (Reichelt approx. 4\u20ac) with 12 mm and LED socket<\/a> (Reichelt approx. 1\u20ac) with 8mm on the underside.<\/p>\n\n\n\n

The Sodial button from Amazon in China (about 3\u20ac cheaper than the Reichelt button) needs a hole with 16mm diameter.<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_222825053.jpg\"<\/figure>\n\n\n\n

Drill another reserve cable gland on the top side, e.g. for a USB cable.<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_222859097.jpg\"<\/figure>\n\n\n\n

Pre-drill holes, e.g. with a 3mm HSS spiral drill<\/a> at high speed.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Drill the holes to final dimensions (8, 12, 16mm) using a 20mm step drill<\/a> with slow speed.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Then deburr the inside with a cutter knife.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Now the LED socket<\/a> can be installed. Since the Grove plug does not fit through the 8mm hole, the 50cm Grove cable<\/a>, which was cut in the middle before, must first be threaded in and then soldered to the LED (see picture). Do not forget to thread the fixing nut. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The black cable is soldered to the short leg of the LED. At the longer LED leg the yellow cable with 330 Ohm resistor<\/a> and the whole mechanically stabilized and insulated with shrink tubing<\/a>.<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190130_004540718.jpg\"<\/figure>\n\n\n\n

When it’s done, it’ll look that way.<\/p>\n\n\n\n

Or if it looks like it, the threading into the housing has been forgotten before. You can also pull the pins out of the plug (lift the snap-in tabs slightly with a 1.5mm screwdriver) and put them back in again after threading.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

So that everything holds well and also looks good, an 8mm shrink tubing (shrink rate 4:1)<\/a> comes over everything again. This is so big that it fits over the Grove connector. I prefer the shrink tubing with hot glue coating inside. This keeps everything together after hot air shrinking.<\/p>\n\n\n\n

Figure: 8mm shrink tubing (shrink ratio 4:1) fits over Grove connector<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The button <\/a>now has the same game:<\/p>\n\n\n\n

The red and yellow wires are soldered to the button.<\/p>\n\n\n\n

Possibly connect a 10k pull-down resistor from yellow (signal) to black (GND).<\/p>\n\n\n\n

The whole can be pre-assembled individually and then mounted as an “assembly”, as the Grove connector fits through the 12mm (or 16mm for Sodial buttons) hole.<\/p>\n\n\n\n

When tightening the plastic M16 cable glands<\/a>, make sure that the locknuts<\/a> are mounted correctly: One side is more round and the corners of the hexagon protrude slightly from the other side, so that they hold better in the housing. A hand tight is enough for tightening, as it’s quickly too much with the wrench.<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_223929925.jpg\"<\/figure>\n\n\n\n

This is how it should look now:<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_224611829.jpg\"<\/figure>\n\n\n\n

Insert Raspberry Zero with UMTS stick as shown:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

As Micro-USB cable I used the following type from Amazon<\/a> (ca 6,\u20ac for 2m): The sheath material of the cable is very high quality and should therefore survive some time in outdoor use and the Micro-USB plug is so small (or rounded) that it just fits through the hole of the cable gland<\/strong>. With solar power supply over 12V you can also do without this cable. It facilitates however the “table operation” and\/or the start-up. A USB power supply unit is quicker to hand than a 12V power supply unit (correctly polarized and connected to loose cable ends).<\/p>\n\n\n\n

Now the self-soldered Grove plug adapter LK is mounted on the Raspberry (information about this board in chapter 3).<\/p>\n\n\n\n

And the breeding chamber sensor DS18B20 is mounted:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The DS18B20 is available with integrated pull-up resistor and Grove plug and 2m cable for 7\u20ac at Mouser<\/a>.<\/p>\n\n\n\n

Of course you can also solder the Grove plug and 4,7kOhm pull-up resistor to a 2\u20ac sensor bought in China.<\/p>\n\n\n\n

Or connect via a Grove screw terminal<\/a> (Reichelt 3\u20ac).<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190201_202656859.jpg\"<\/figure>\n\n\n\n

Mouser also offers the BME680 sensor with Grove plug<\/a> for about 19\u20ac. If you now still buy the HX711 with Grove plug<\/a> (quite expensive with 15\u20ac), the AM2302 with Grove plug<\/a> 9\u20ac, the Raspberry Zero W or an SD card there, then you don’t have to pay the steep shipping costs\/minimum quantity surcharge (no shipping costs from 50\u20ac value of goods (without VAT)).<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Top: AM2302 with Grove plug<\/a> 9\u20ac from mouser.com<\/p>\n\n\n\n

Below: Mouser BME680 sensor with Grove plug<\/a> for approx. 19\u20ac<\/p>\n\n\n\n

Now the cable with the 12V and the soldered 12V\/5V DC\/DC converter comes in (more about 12V\/5V DC\/DC converters in the chapter Solar Power Supply; only necessary for solar power supply).<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Finally I connected the outside temperature and humidity sensor. I chose the AM2320<\/a> (eBay from China 2,50\u20ac). Decision criterion: Useable case\/super price-performance ratio.<\/p>\n\n\n\n

An AM2302 is installed internally in the AM2320:<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_231245398.jpg\"<\/figure>\n\n\n\n

Attention the Am2320 has the Grove connector internally, but with a different assignment:<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190130_004733385_BURST000_COVER_TOP.JPG\"<\/figure>\n\n\n\n

Left the standard Grove allocation, right the allocation of the AM2320.<\/p>\n\n\n\n

=> So pin out the contacts from the connecting cable<\/a> on one side and plug the wires into the socket in the AM2320 order.<\/p>\n\n\n\n

If the housing of the sensor is open, the 4.7k pull-up resistor can be soldered into it.<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190201_201907946.jpg\"<\/figure>\n\n\n\n

In the future I will solder a 10k 0805 SMD resistor here (see parts list).<\/p>\n\n\n\n

The last one is the HX711. Since the model with Grove plugs was too expensive for me (or I found it only too late\u2026), I use the well-known 2\u20ac model from Amazon<\/a>; On the Rasperrry-Pi side a cut Grove cable soldered and with 19mm heat shrink tubing the PCB insulated.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Alternative: HX711 board with Grove plug<\/a> from Mouser (15\u20ac but quite expensive).<\/p>\n\n\n\n

To order from Mouser, see above.<\/p>\n\n\n\n

As soon as the scale section is finished, the cable from the load cell enters through the cable gland in which the pliers are currently inserted.<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190131_231822105.jpg\"<\/figure>\n\n\n\n

Picture before tightening the cable glands (again only hand-tight without tools).<\/p>\n\n\n\n

I have reinforced each cable in the area of the cable gland with 8mm heat shrink tubing so that it is better clamped in the M16 cable glands.<\/p>\n\n\n\n

Small cable bushings that fit better to the cables (e.g. M12) make little sense. Here the Grove plugs would not fit through.<\/p>\n\n\n\n

Screw on the lid and you’re done:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Alternative: Plastic housing<\/h2>\n\n\n\n

Had also tried the 10mm narrower Reichelt RND 455-00194 case<\/a> (160 x 80 x 55 mm, IP65) (ca.7,50\u20ac), but it will be pretty tight.<\/p>\n\n\n\n

But it also works if you don’t want to wait three weeks for the delivery of the bigger case from China):<\/p>\n\n\n\n

\"C:UsersAlexAppDataLocalMicrosoftWindowsINetCacheContent.WordIMG_20190130_210206315.jpg\"<\/figure>\n\n\n\n

Translated 19.10.2019 by JK<\/em><\/p>\n\n\n

<\/p>\n

\u00a0<\/p>\n



<\/p>","protected":false},"excerpt":{"rendered":"

type 158x90x65mm clear waterproof plastic That’s what it looks like when it’s done: Re 1: Total material costs for electronics with me approx. 64\u20ac (+ possibly resulting forwarding expenses) Prize Amount Sum Type 15,50 \u20ac 1 15,50 \u20ac Raspi Zero reichelt Raspberry Pi Zero WH v.1.1, 1 GHz, 512 MB RAM, WLAN, BT 3,95 \u20ac 1 3,95 \u20ac\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":4,"featured_media":1029,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[17],"class_list":["post-1149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-instruction","tag-tutorial"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["de","en"],"languages":{"de":{"title":true,"content":true,"excerpt":false},"en":{"title":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/posts\/1149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/comments?post=1149"}],"version-history":[{"count":19,"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/posts\/1149\/revisions"}],"predecessor-version":[{"id":2560,"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/posts\/1149\/revisions\/2560"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/media\/1029"}],"wp:attachment":[{"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/media?parent=1149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/categories?post=1149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/honey-pi.de\/en\/wp-json\/wp\/v2\/tags?post=1149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}