开放式划船监控系统性能监控模块 CASE 适用于 NOHRD 水上健身机经典型号

Open Rowing Monitor performance monitor CASE for NOHRD WaterRower Classic rowing machine

2024-01-09 02:46:27

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开放式划船监控系统性能监控模块 CASE 适用于 NOHRD 水上健身机经典型号

Summary

This is a all-in-one case for mounting an Raspberry Pi PCB including an 4.3inch Touchscreen Display to an NOHRD WaterRower Classic damage-free!
Also available for download here: A single sensor case with cable outlet if you do not want to use a display.

What you need:

Raspberry Pi 4 with micro SD card
4,3" Touchdisplay ( https://www.amazon.de/dp/B08CH24YYD?psc=1&ref=ppx_yo2ov_dt_b_product_details )
1 Reed sensor, 4 magnets
some cables, 1 screw with nut
1 USB-C angled plug (https://www.amazon.de/dp/B09KG463G7?ref=ppx_yo2ov_dt_b_product_details&th=1)

Please configure Raspberry Pi according to the instructions for Open Rowing Monitor:
--> https://laberning.github.io/openrowingmonitor/ <--

Hardware:
This Youtube Videos shows my solution for mounting 4 magnets around a rotating disc that is firmly connected to the impeller on an axle. A reed sensor is positioned near to the magnets.
--> https://youtu.be/Xwc5NzPmvLA <--
The clamp is glued to the wood of the rowing machine using high-quality double-sided adhesive tape. It holds well and can be removed without leaving any residue if necessary.
I used some hot glue to mount the "connecting plate" to the sensor case for better holding.

The easiest way to power the Raspberry is via GPIO. If you want to use a USB-C connection, you will need a right-angle plug. I sanded my angled connector flat with sandpaper until it fitted into the housing.