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This commit is contained in:
Stavros Korokithakis
2020-11-25 22:27:20 +02:00
parent 3669d2d22c
commit 4868f0b3af
22 changed files with 14 additions and 14 deletions
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content/drone-stuff/getting-uninverted-sbus-on-a-no-name-frsky-compatible-receiver.md
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I got an [RC receiver](https://www.banggood.com/2_4G-8CH-D8-Mini-FrSky-Compatibel-Receiver-With-PWM-PPM-SBUS-Output-p-1140478.html?rmmds=myorder&cur_warehouse=CN) from Banggood. There's uninverted SBUS on this pad:
[![rc-sbus.jpg](../../ccc7571db5d147328860077fdc0aa745.jpg)](../../ccc7571db5d147328860077fdc0aa745.jpg)
[![rc-sbus.jpg](../../resources/ccc7571db5d147328860077fdc0aa745.jpg)](../../resources/ccc7571db5d147328860077fdc0aa745.jpg)
To break this out to the SBUS pad, I had to remove/bridge the resistor that is circled in the image, and remove/bridge the FET on the other side:
[![rc-sbus-mosfet.jpg](../../1b0f508a533e45b496c6636d49161b0c.jpg)](../../1b0f508a533e45b496c6636d49161b0c.jpg)
[![rc-sbus-mosfet.jpg](../../resources/1b0f508a533e45b496c6636d49161b0c.jpg)](../../resources/1b0f508a533e45b496c6636d49161b0c.jpg)
content/drone-stuff/getting-uninverted-sbus-smartport-on-the-frsky-xsr-receiver.md
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To get uninverted SBUS/SmartPort on the FrSky XSR/X4RS receiver, you can repurpose the CPPM pad.
Remove the two small resistors shown in the image, and solder the two lower pads (together) to either the CPPM pad or the MOSFET pin shown in the photo:
[![xsr-sbus.jpeg](../../f86da9a7aac1413ebd77825897164f7f.jpeg)](../../f86da9a7aac1413ebd77825897164f7f.jpeg)
[![xsr-sbus.jpeg](../../resources/f86da9a7aac1413ebd77825897164f7f.jpeg)](../../resources/f86da9a7aac1413ebd77825897164f7f.jpeg)
They should be soldered like this (remember to solder both resistor pads together):
[![xsr-sbus2.jpeg](../../815576429ece43789dbc70dfd33517a1.jpeg)](../../815576429ece43789dbc70dfd33517a1.jpeg)
[![xsr-sbus2.jpeg](../../resources/815576429ece43789dbc70dfd33517a1.jpeg)](../../resources/815576429ece43789dbc70dfd33517a1.jpeg)
Now the CPPM pad will be uninverted SBUS/SmartPort instead.
It seems to be a bit of a gamble whether you get SBUS or SmartPort, it might be firmware-dependent.
content/drone-stuff/omnibus-f4-pro-servo-diode.md
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To isolate the servo 5V rail from the controller's 5V power supply, remove this diode:
[![a435bcae86912205b6fac41731285b8d.png](../../6d668e05d8a54580966b94a752f3b7db.png)](../../6d668e05d8a54580966b94a752f3b7db.png)
[![a435bcae86912205b6fac41731285b8d.png](../../resources/6d668e05d8a54580966b94a752f3b7db.png)](../../resources/6d668e05d8a54580966b94a752f3b7db.png)
Now the servos' 5V rail can be powered from another 5V supply to avoid servo current backflow into the FC.
content/drone-stuff/omnibus-f4-v3-pinout.md
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This is the pinout of the Omnibus F4 V3:
[![53b3161d509dcc7bbfb43c89b16b0bae.png](../../99f5c91454204c1d9740a8d9b876833b.png)](../../99f5c91454204c1d9740a8d9b876833b.png)
[![53b3161d509dcc7bbfb43c89b16b0bae.png](../../resources/99f5c91454204c1d9740a8d9b876833b.png)](../../resources/99f5c91454204c1d9740a8d9b876833b.png)
content/drone-stuff/transmitter-external-module-pinout.md
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@@ -14,5 +14,5 @@ The transmitter (Taranis, Jumper, RadioMaster, etc) pinout is, from top to botto
It's illustrated in this photo:
[![pinout.jpeg](../../72d23239af1541d4b170271c1e9e21eb.jpeg)](../../72d23239af1541d4b170271c1e9e21eb.jpeg)
[![pinout.jpeg](../../resources/72d23239af1541d4b170271c1e9e21eb.jpeg)](../../resources/72d23239af1541d4b170271c1e9e21eb.jpeg)