The Walkera Ladybird can carry 2 or 3 Gramms payload nicely. My little camera combo (Camera, 2.4Ghz transmiter, 5V voltage regulator) is 4.0 gr – that is still acceptable.
To connect to the groundstation receiver, the following frequency pairings work:
| TX 1 2 3 4 |
RX O : : : |
|---|---|
| 0 0 0 1 | 0 0 0 |
| 1 0 0 1 | 0 0 1 |
| 0 1 0 1 | 0 1 0 |
| 0 1 0 0 | 0 1 1 |
| 0 0 1 1 | 1 0 0 |
| 1 0 1 0 | 1 0 1 |
| 0 1 0 0 | 1 1 0 |
| 0 0 0 0 | 1 1 1 |
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