Add content list

content/drone-stuff/_index.md

@@ -1,7 +1,14 @@
 +++
 title = "Drone stuff"
-weight = 2
+weight = 3
 sort_by = "weight"
 insert_anchor_links = "right"
 +++
-Select one of the sublinks on the left to see the notes in this section.
+## Contents
+
+Click on a link in the list below to go to that page:
+
+1. [Getting uninverted SBUS on a no-name FrSky-compatible receiver](../../drone-stuff/getting-uninverted-sbus-on-a-no-name-frsky-compatible-receiver)
+1. [Getting uninverted SBUS on the FrSky XSR receiver](../../drone-stuff/getting-uninverted-sbus-on-the-frsky-xsr-receiver)
+1. [Omnibus F4 V3](../../drone-stuff/omnibus-f4-v3)
+1. [Omnibus F4 pro servo diode](../../drone-stuff/omnibus-f4-pro-servo-diode)

content/drone-stuff/getting-uninverted-sbus-on-a-no-name-frsky-compatible-receiver.md

@@ -0,0 +1,14 @@
++++
+title = "Getting uninverted SBUS on a no-name FrSky-compatible receiver"
+weight = 0
+sort_by = "weight"
+insert_anchor_links = "right"
++++
+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)
+
+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)
+

content/drone-stuff/getting-uninverted-sbus-on-the-frsky-xsr-receiver.md

@@ -0,0 +1,16 @@
++++
+title = "Getting uninverted SBUS on the FrSky XSR receiver"
+weight = 1
+sort_by = "weight"
+insert_anchor_links = "right"
++++
+To get uninverted SBUS on the FrSky XSR/X4RS receiver, you can repurpose the CPPM pad.
+Just solder the following:
+
+![xsr-sbus.jpeg](../../f86da9a7aac1413ebd77825897164f7f.jpeg)
+
+> Remove the two resistors and solder a small wire from the CPPM pin pad to both (!!!) of the lower resistor solder pads.
+
+![xsr-sbus2.jpeg](../../815576429ece43789dbc70dfd33517a1.jpeg)
+
+Now the CPPM pad will be uninverted SBUS instead.

content/drone-stuff/omnibus-f4-pro-servo-diode.md

@@ -1,6 +1,6 @@
 +++
 title = "Omnibus F4 pro servo diode"
-weight = 1
+weight = 3
 sort_by = "weight"
 insert_anchor_links = "right"
 +++

content/drone-stuff/omnibus-f4-v3.md

@@ -1,6 +1,6 @@
 +++
 title = "Omnibus F4 V3"
-weight = 0
+weight = 2
 sort_by = "weight"
 insert_anchor_links = "right"
 +++