WM220 Gimbal Sensor Control board
Function
Variants
Parts
Programming
External interfaces
Service interfaces
Board view
Schematics
The board contains gimbal controller and Camera Sensor interface within Dji Mavic. It is a hub for all signals going to and from the Gimbal and Camera Sensor.
Only one version of the module is known.
| Marking | Overview |
|---|---|
| P01793.10 | The first version. |
| P01793.11 | |
| P01793.12 |
| Marking | Amt. | Pkg. | Function | Specification |
|---|---|---|---|---|
| STM32F303CBT6 GH26R CHN GH1001 | 1 | UFBGA | Arm Cortex-M4 32-bit MCU; for gimbal master control | description |
| PA 7CA / PA 6JA | 2 | 3x3 UDFN/WSON | Mini Linear Regulator, DI AP7361ADJ; used to power uC and SD card slot | datasheet |
| N24.0 R11 SC067A | 1 | |||
| T120 PwA9 | 1 | 4-lead SMD 3225 | Quartz oscillator, 12MHz | |
| W1A 56 | 1 | 3-pin SOT-23 | PMBT3904 NPN switching transistor | description |
| AEUG | 1 | 8-pin SOT-23 | Buck converter | |
| AEKF | 1 | 8-pin SOT-23 | Maxim MAX3051EKA+T 1Mbps, Low-Supply-Current CAN Transceiver | datasheet |
| 34-pin FPC CON | 1 | 34-pin 8.7x2.2 | LANRUISI 2x17pin male connector, 0.4 mm pitch; Flexible Printed Circuit Connector, for core board | |
| 24-pin FPC CON | 1 | 24-pin 6.7x2.2 | LANRUISI 2x12pin male connector, 0.4 mm pitch; Flexible Printed Circuit Connector, for core board | |
| 34-pin FPC CON | 1 | 34-pin 9.4x2.2 | LANRUISI 2x17pin female connector, 0.4 mm pitch; Flexible Printed Circuit Connector | |
| 24-pin FPC CON | 2 | 24-pin | 2x12pin female connector, 0.4 mm pitch; Flexible Printed Circuit Connector |
| Chips | Firmware | Description |
|---|---|---|
| STM32F303 | m0400 | Gimbal master control; provides gimbal arm micro-controllers with proper signals to ensure stabilization and responsiveness to user commands. |
| Marking | Overview |
|---|---|
| TODO |
The following service pads exist on this board:
| Marking | Overview |
|---|---|
| 3V6 | |
| GPIO1 | |
| GPIO2 | |
| H1_YAW | |
| H2_YAW | |
| H1_PITCH | |
| INT | |
| SCK | |
| MISO | |
| MOSI | |
| A3 | |
| B3 | |
| C3 | |
| C_N | |
| H1_ROLL | |
| H2_ROLL | |
| A1 | |
| B1 | |
| C1 | |
| A2 | |
| B2 | |
| C2 | |
| B_N | |
| GND | |
| IVA | |
| A_N | |
| 3V3_M | |
| TX | |
| RX | |
| LUB | |
| CS1 | |
| 26M | |
| CLK | |
| PGND | |
| VBAT | |
| PITCH | |
| SWCLK | JTAG test clock / Serial Wire Debug Clock |
| SWDIO | JTAG test mode selection / Serial Wire Debug I/O |
| TX1 | |
| RX1 | |
| GND |
Top of a P01793.10 board:
Bottom of the P01793.10 board:
Top of a P01793.11 board:
Bottom of the P01793.11 board:
Top of another P01793.11 board:
Bottom of the P01793.11 board:
Top of a P01793.12 board:
Bottom of the P01793.12 board:
The following schematics were made by enthusiasts: