Stack 760
The actual 3D design of the stack: Brahma F7 on Vishnu 60 PRO. Turn it over and look at it from any side.
Where the Stack 760 goes.
Four M3 screws come up through the frame on the standard 30.5 × 30.5 mm pattern. Scroll to build it in.
Grommets first.
A soft TPE grommet presses into each mounting hole, so frame vibration stays out of the gyros. We injection-mould them ourselves.
Vishnu, then Brahma.
The Vishnu 60 PRO slides down the screws first. The Brahma F7 sits on top.
Four nuts. One cable.
An 8-pin cable links the two boards. Tighten four nuts, close the frame, and you are wired.
One stack.
Many machines.
One board thinks.
One board moves.
Brahma F7 flight controller + Vishnu 60 PRO 4-in-1 ESC on a standard 30.5 × 30.5 mm pattern. Keep scrolling to take it apart.
Flight controller
- MCUSTM32F722
- GyroICM42688P
- Ports6 UART · I²C
- MotorsUp to 8
- Logging32MB Blackbox
- VideoHD FPV plug port
Vishnu 60 PRO
- Current60A · 90A burst (7s)
- Input2S-6S LiPo or Li-ion
- ProtocolDShot300 / 600
- SensingInbuilt current sensor
- Mounting30.5 × 30.5 · 4mm holes
- Weight14g
VISHNU
60
Four-in-one, 240A continuous. Field tested and proven.
Drop in.
Flash. Fly.
Tuned as a pair and shipped as one stack, with every accessory in the box.
Stack 760 specifications
Brahma F7 flight controller and Vishnu 60 PRO 4-in-1 ESC, matched and shipped as one stack on a standard 30.5 × 30.5 mm mount.
Brahma F7 flight controller
| Processor | STM32F722 |
|---|---|
| Gyroscope | ICM42688P |
| Barometer | DPS310 |
| On-screen display | AT7456E (analog) |
| Blackbox | 32MB onboard flash |
| USB | Type-C |
| Firmware | Betaflight, INAV |
| UARTs | 6 |
| I²C | Yes, for compass, airspeed and other sensors |
| Motor outputs | 8 (M1–M8) |
| 5V output | 2A |
| 9V output | 2A, for digital VTX |
| 4.5V output | Powered over USB, for the receiver while configuring |
| 3.3V output | For compasses and sensors |
| Digital FPV | HD FPV plug-and-play port |
| Inputs | RSSI, SBUS |
| Protection | Reverse polarity, USB ESD, power filtering |
| Mounting | 30.5 × 30.5 mm (M3) |
| Dimensions | 39 × 37 × 5 mm |
| Weight | 9 g |
| Made in | Designed and manufactured in India (Bally, West Bengal) |
Vishnu 60 PRO ESC
| Type | 4-in-1 ESC |
|---|---|
| Continuous current | 60A per channel, 240A in total |
| Burst current | 90A for 7 seconds |
| Firmware | BLHeli_S or BlueJay (JH_50) |
| Protocol | DShot300 / DShot600 |
| Input | 2S-6S LiPo or Li-ion |
| Current sensor | Built in |
| Motors | Maximum draw below 70–80A |
| Flight controller connection | Plug-and-play 8-pin cable |
| Mounting | 30.5 × 30.5 mm, 4 mm holes |
| Dimensions | 46 × 48.8 × 5.7 mm |
| Weight | 14 g |
| Operating temperature | −20 °C to 70 °C |
| Made in | Designed and manufactured in India (Bally, West Bengal) |
Book your Stack 760
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Stack 760 user manual
Point at any label to see the wire and the part it belongs to. Step through the flashing guides. Zoom in on anything.
Point at a label or a wire to trace it. Click to keep it lit. Double-click to zoom.
Read the Stack 760 manual as text
BRAHMA F7: Specifications 1/3
| Product Name | Darkmatter® Brahma F7 |
|---|---|
| Product Category | Flight Controller |
| Processor (MCU) | F7 – STM32F722 |
| Gyroscope (IMU) | ICM42688P |
| Barometer | DPS310 |
| On-Screen Display | AT7456E |
| Blackbox | 32MB Winbond Blackbox |
| USB Port Type | Type-C |
| Supported Flight Controller Firmware | BetaFlight (Default), INAV |
| Power Input | 2S-6S LiPo or Li-ion |
| Mounting | 30.5 X 30.5mm (4mm hole size) |
| Dimensions | 39mm(L) x 37mm(W) x 5mm(H) |
| Weight | 9g |
BRAHMA F7: Specifications 2/3
| 5V Output | 7 groups of 5V output, four +5V pads and 1 BZ+ pad (used for Buzzer) on front side, and 2x LED 5V pads. The total current load is 2A. |
|---|---|
| 9V Output | 1 9V output, one +9V pad on front side. The total current load is 2A. |
| 4v5 Output | 1 4.5V output, 500mA from USB to connect receiver or other peripherals |
| 3.3V Output | Supported. Up to 500mA current load. |
| Traditional BetaFlight LED Pad | Supported. 5V, G and LED pads on the bottom side. Used for WS2812 LED controlled by BetaFlight firmware. |
| Buzzer | BZ+ and BZ- pad used for 5V Buzzer |
| ESC Signal | M1 - M4 on front side | M5-M8 on bottom side |
| DJI Air Unit Connection Way | Plug & Play Port |
BRAHMA F7: Specifications 3/3
| BOOT Button | Supported. Press and hold BOOT button and power the FC on at the same time will force the FC to enter DFU mode, this is for firmware flashing when the FC gets bricked. |
|---|---|
| RSSI Input | Supported. Named as RSI on the front side. |
| SmartPort | Use any TX pad of UART for the SmartPort feature. |
| UART | 6 sets(UART1, UART2, UART3(For ESC Telemetry), UART4, UART5, UART6) |
| ESC Telemetry UART | R3(UART3) |
| I2C | Supported. SDA & SCL pads on front side. Used for magnetometer, sonar, etc. |
| OPERATING TEMPERATURE | -20°C TO 70°C.. |
| COUNTRY OF ORIGIN | DESIGNED AND MANUFACTURED IN INDIA |
VISHNU 60 PRO: Specifications
| Product Name | Darkmatter® Vishnu 60 PRO |
|---|---|
| Product Category | ELECTRONIC SPEED CONTROLLER (ESC) |
| Firmware | BLHeli_S /BlueJay ( JH_50 ) |
| Burst Current | 90A (7 Seconds) |
| Continuous Current | 60A x 4 = 240A |
| ESC Protocol | DSHOT300/600 |
| Power Input | 2S-6S BAT | IMPORTANT Please solder the low ESR capacitor between VBAT "+" and" -", and the VBAT “-” should be connected to the -ve side of the capacitor only. |
| Power Output | VBAT |
| Current Sensor | Inbuilt |
| Mounting | 30.5 x 30.5mm, 4mm hole size |
| Dimensions | 46 * 48.8 * 5.7mm |
| Weight | 14g |
| Supported Motors | PLEASE CHECK MOTOR MAX CURRENT DRAW FROM MOTOR MANUFACTURER’S MANUAL, SHOULD BE BELOW 70-80A. PROVIDED YOU ARE NOT PLANNING TO FLY ON 100% THROTTLE FOR 100% OF THE TIME WITH THE LARGEST PROP SUPPORTED BY THE MOTOR, IF THAT'S THE CASE LOOK FOR 60A OR BELOW. |
| Operating Temperature | -20 to 70 Degree Celsius |
| COUNTRY OF ORIGIN | DESIGNED AND MANUFACTURED IN INDIA |
BRAHMA F7 DIMENSIONS
Front · Back · 30.5MM · 4MM · 39MM · 37MM · Side · 5MM · 1.6MM
DIMENSIONS
Front · Back · 30.5MM · 4MM · 46MM · 48.8MM
Flight Controller Layout
MCU – STM32F722 · AT7456E (OSD) · Gyro – ICM42688 · Baro – DPS310 · Boot Button · 8 Pin ESC Connector(M1-M4) · Type C Port · UART #5 · UART #1 · UART #4 · Buzzer · FPV CAM · ESC Solder Pads (M5-M8) · 9V/2A BEC · 5V/2A BEC · LED Strip · 32MB Blackbox · Reverse Polarity Protection · HD FPV PORT · ESD PROTECTION · Status LEDs · I2C #1 · UART #2 · VTX · UART #3 · UART #6 · ESC SOLDER PADS(M1-M4) · RSSI PORT · 4V USB
Flight Controller – Peripheral Connection
GPS & Compass · FPV CAM · ESC M4 TO M8 Solder Pads · HD FPV PLUG & PLAY PORT · 5V · SDA · SCL · B+ · B- · LED Strip · CAM · VTX · VTX · 9V · IBUS RECEIVER · ELRS RECEIVER · RX · TX · Buzzer · CC
4 in 1 ESC Plug and Play Connection
CURRENT · MOTOR 1 · MOTOR 2 · MOTOR 3 · MOTOR 4 · GROUND · VOLTAGE · TELEMETRY · BETAFLIGHT STANDARD CONNECTOR · Motor 2 · Motor 4 · Motor 3 · Motor 1
4 in 1 ESC Direct Soldering Connection
Motor 2 · Motor 4 · Motor 3 · Motor 1 · CURRENT · MOTOR 4 · MOTOR 3 · MOTOR 2 · MOTOR 1 · GROUND · VOLTAGE
4 in 1 ESC Motor Connection Numbering
Motor 2 · Motor 4 · Motor 3 · Motor 1 · THIS SIDE FACING UP · THIS SIDE FACING DOWN
2 x 4 in 1 ESC Direct Soldering Connection For 8 Motors
MOTOR 8 · MOTOR 7 · MOTOR 6 · MOTOR 5 · GROUND · BATTERY
Single ESCs Direct Soldering Connection For 8 Motors
CONNECT BRAHMA F7 WITH IBUS RECEIVER
IBUS RECEIVER · *IF USING BETAFLIGHT KINDLY REFLASH WITH IBUS PROTOCOL SELECTED AND THEN TURN ON Serial Rx ON UART 1
STACK 760: Package Contents
• 1x Brahma F7 • 1x Vishnu 60 PRO • 1x 8Pin ESC FC Connector Cable • 8x Grommets (Gummies) • 1x 1000uF Low ESR Capacitor • 1x XT60 Battery Connector Plug • 1x 12AWG Wire for Battery Connection • 4x M3 25mm Screws • 4x M3 Bolts • 1x Tin Container Box
HOW TO FLASH BETAFLIGHT ON BRAHMA F7 (1/2)
- PRESS AND HOLD THE BOOT BUTTON and connect to PC and open BETAFLIGHT CONFIGURATOR
- ONCE IN DFU CLICK ON UPDATE FIRMWARE
- MAKE SURE FULL CHIP ERASE IS ON
- CLICK ON LOAD FIRMWARE LOCAL
- CLICK ON LOAD FLASH FIRMWARE
- WAIT A BIT FOR THE ERASING AND FLASHING TO COMPLETE
HOW TO FLASH BETAFLIGHT ON BRAHMA F7 (2/2)
- CLICK ON CLI FROM THE LEFT HAND SIDE MENU
- CLICK ON CLOSE
HOW TO FLASH INAV ON BRAHMA F7 (1/2)
- ONCE IN DFU CLICK ON FIRMWARE FLASHER
- PRESS AND HOLD THE BOOT BUTTON and connect to PC and open INAV CONFIGURATOR
- CLICK ON LOAD LOAD FIRMWARE ONLINE
- CLICK ON LOAD FLASH FIRMWARE
- WAIT A BIT FOR THE ERASING AND FLASHING TO COMPLETE
HOW TO FLASH INAV ON BRAHMA F7 (2/2)
- SELECT THE TYPE OF CRAFT YOU ARE MAKING
- SELECT THE UART & THE RECEIVER PROTOCOL FOR RX
- SELECT THE UART PORT FOR GPS
• Warranty Period: The STACK 760 comes with a 6-month warranty for any manufacturing defects from the date of purchase. • Proof of Purchase: Please retain and provide a copy of the purchase invoice for warranty claims. • Exclusions: The warranty does not cover : • Any physical damage to the product due to usage like water damage, tampered components • Burnt circuit due to wrong wiring or overloading. • Burning ESC due to spinning motors without propellers beyond 15% during initial testing for motor direction. • Burning ESC due to arming the drone without propellers in Angle mode and expecting it to stop spinning by lowering the throttle, which it will not, as the FC is trying hard to level but it can't, as you guessed it, there is no propeller. • Warranty Process: If a claim is made within the warranty period, we will examine the PCB for physical damage and the points stated above. If the product is eligible, we will provide a replacement at no additional cost and support you for your build. Your satisfaction and product performance are our top priorities. For any warranty-related inquiries, please contact us at +918017193277.
• Warranty Period: The STACK 760 comes with a 6-month warranty for any manufacturing defects from the date of purchase. • Proof of Purchase: Please retain and provide a copy of the purchase invoice for warranty claims. • Exclusions: The warranty does not cover : • Any physical damage to the product due to usage like water damage, tampered components • Burnt circuit due to wrong wiring or overloading. • Burning ESC due to spinning motors without propellers beyond 15% during initial testing for motor direction. • Burning ESC due to arming the drone without propellers in Angle mode and expecting it to stop spinning by lowering the throttle, which it will not, as the FC is trying hard to level but it can't, as you guessed it, there is no propeller. • Warranty Process: If a claim is made within the warranty period, we will examine the PCB for physical damage and the points stated above. If the product is eligible, we will provide a replacement at no additional cost and support you for your build. Your satisfaction and product performance are our top priorities. For any warranty-related inquiries, please contact us at +918017193277. · STACK 760 - 6 Months Warranty