SIYI AK28 User Manual

Agriculture smart controller

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AK28 User Manual V1.3

AK28

AGRICULTURE

SMART CONTROLLER

USER MANUAL

V1.3

Mar 2022

2022 SIYI Technology Copyright

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Page 1 AK28 User Manual V1.3 AK28 AGRICULTURE SMART CONTROLLER USER MANUAL V1.3 Mar 2022 2022 SIYI Technology Copyright...
Page 2 Through digital image transmission, AK28 receives real-time FPV and has the capability to process and display the information using its powerful operating system, which finally helps pilot control and master their drones in a good way. AK28 makes itself a perfect combination of UAV remote control and communication technology in hardware and in software.
Page 3 AK28 User Manual V1.3 SIYI User Group - Facebook SIYI YouTube Channel (https://www.youtube.com/c/SIYITech) SIYI Official Aliexpress Store (https://siyi.aliexpress.com) 2022 SIYI Technology Copyright...
Page 4: Table Of Contents
READ TIPS ................................. 1 Icons ..................................1 Safety ..................................1 Battery ..................................3 Memory Card (SD/TF) ............................4 How to Use SIM Card on AK28 ........................... 4 Storage/Carrying/Recycling ..........................5 1 INTRODUCTION ..............................6 1.1 Product Features ............................. 6 1.2 Parts .................................. 8 1.2.1 At a Glance ...............................
Page 5 4.2 Communication with GCS via Bluetooth ....................42 4.3 Solutions to Disconnection .......................... 44 5 SIYI FPV APP ............................... 45 6 IMAGE TRANSMISSION ............................ 46 6.1 Using SIYI FPV Camera ..........................46 6.2 Solutions to No Image ..........................46 7 ANDROID OS................................ 48 7.1 Download App..............................48 7.2 Import and Install App ...........................
Page 6 AK28 User Manual V1.3 9.2.3 1-Year Warranty Repair ........................58 10 FCC STATEMENT ............................. 60 2022 SIYI Technology Copyright...
Page 7: Read Tips
Mandatory Mark Safety AK28 Agriculture Smart Controller is designed for professional application in specific industries, users who approach to the equipment should have at least the basic knowledge to operate it. Irregular or irresponsible manipulations to the device may cause damage, property loss, or human injuries. Users under 14 years’ old should follow an experienced trainer’s guide.
Page 8 AK28 User Manual V1.3 Do not use any SIYI system to operate your aircraft/vehicle/model at places with intensive crowd (a square, a park), or at places with many obstructions (a street, a parking lot), or in fields with strong magnetic or interference (an electricity plant, a radar station, railways), or in any other fields where an irregular flight/operation may cause property loss or human injuries.
Page 9: Battery
Do not use any USB chargers over 5V/2A output to charge the ground unit. Please power off AK28 ground unit before charging. The ground unit does not allow charging while it is working. Stop charging immediately if you found the charger damaged, broken or overheat.
Page 10: Memory Card (Sd/Tf)
How to Use SIM Card on AK28 AK28 supports 4G network, like a smartphone. You can put in an SIM card into the ground unit to activate the function. Before putting in an SIM card into AK28 ground unit, please check if is compatible with your local cellular network.
Page 11: Storage/Carrying/Recycling
When your SIYI system is standby, or you are bringing it outdoors, or the system has expired of its service life, please do read the precautions below. CAUTION Always place your AK28 ground unit at places where babies or kids do not reach. DANGER AK28 ground unit should be placed as below: Not too hot (above 60℃) or too cold (under -20℃).
Page 12: Introduction
Considering the complicated working conditions of agricultural drones outdoors, the completely waterproof and dustproof process has been done to key connectors on AK28 operating panel, such as the shell, the switches, external ports, etc. With this 2020 SIYI Tech All Rights Reserved...
Page 13 AK28's 7" high brightness and high-definition LCD screen. Replaceable High Capacity LiPo Battery AK28 uses the same high-capacity Li-Po battery for top-class smartphone brands. The battery features low internal resistance, long working time for 10 hours, and an excellent power curve for the operating system.
Page 15: Button/Switch Types And Default Channel Definitions
AK28 User Manual V1.3 1.2.2 Button/Switch Types and Default Channel Definitions AK28 ground unit is designed with 14 physical channels and 16 communication channels in total. Communication channel 10 to 14 are mapped with PWM channel 1 to 5 in default.
Page 17: Ports On Vd32 Air Unit
AK28 User Manual V1.3 1.2.4 Ports on VD32 Air Unit Video: Signal and power output for FPV camera. UART: Telemetry output/input. S.Bus: S.Bus signal output. PWM1-5: PWM Signal output from PWM channel 1 to 5. 2020 SIYI Tech All Rights Reserved...
Page 18: Technical Specification
5 hours (3 batteries through charging hub) Charging: Micro-USB Data Transfer: Micro-USB Interface & Ports Firmware Upgrade: DATA (4-Pin) Mobile Network: SIM Card Slot External Storage: SD Card Slot Waterproof Level IP53 Battery Working 0 ~ 55 (℃) Temperature 2020 SIYI Tech All Rights Reserved...
Page 19 106 x 25 x 41 mm Weight 108 g Searchlight Power Consumption Luminous Flux 1 W / 120 ~ 140 lm LED Type Transparent LED Angle 120° Waterproof Level IP67 -10℃ ~ 55℃ Working Temperature 2020 SIYI Tech All Rights Reserved...
Page 20: Packing List
AK28 User Manual V1.3 1.4 Packing List 1 x AK28 Ground Unit 1 x VD32 Air Unit 1 x IP67 FPV Camera (with searchlights) 1 x Telemetry Cable 1 x Micro-USB to USB-A OTG Cable 1 x Type-C to USB-A OTG Cable...
Page 22: Indicator Definition
AK28 User Manual V1.3 1.6 Indicator Definition The status indicators on AK28 ground unit and VD32 air unit use three different colors and different blinking frequencies to indicate the system’s working or abnormal status. 1.6.1 Ground Unit Indicator Green Blinks: Blinking frequency indicates the system’s signal quality. More frequently it blinks, worse the signal quality is.
Page 23: Air Unit Indicator
Triple Yellow Blinks: Image transmission abnormal. Slow Yellow Blinks: Transmitter power voltage abnormal. Fast Red-Green-Yellow Blinks: Air unit firmware is empty. Air unit requires firmware update. Red-Green-Yellow Blinks in every 5 seconds: Air unit under wireless updating. 2020 SIYI Tech All Rights Reserved...
Page 24: Get Ready To Use Ak28
Screen Off: When AK28 ground unit is working, press the power button once, ground unit monitor will be off for saving battery power. 2.1.2 Charging You can charge AK28 ground unit only when it is powered off and using the original USB charger. 2020 SIYI Tech All Rights Reserved...
Page 25: Charging Indicator
2. The charging indicator lights on red, ground unit starts being charging. 3. When the charging indicator turns to green, charging is finished. CAUTION AK28 ground unit cannot be charged when it is working. Please do power off the ground unit before charging. 2.1.3 Charging Indicator Solid Red: In charging.
Page 26 You can also get spare batteries for AK28 ground unit and charge up to three AK28 batteries via the multiple battery charging hub designed and manufactured by SIYI.
Page 27: How To Place Ak28 Antennas
AK28 User Manual V1.3 2.2 How to Place AK28 Antennas Both AK28 ground unit and VD32 air unit are using SMA male connector for fixing antenna. Please make sure that the connectors are screwed tight in case of any influence to transmission quality and range.
Page 28 AK28 User Manual V1.3 Mark: AK28 ground unit performs better signal strength when the antennas are placed horizontally (A, B). Thus, please avoid pointing antennas’ upper end straightly to your aircraft and do not overlap the antennas (C). 2020 SIYI Tech All Rights Reserved...
Page 30 Aircraft in front of the ground unit WARNING Do not fold or cover antennas and avoid any obstruction between the transmitter and the aircraft in flight, otherwise there will be an obvious decrease to transmission signal quality. 2020 SIYI Tech All Rights Reserved...
Page 31: How To Place Air Unit Antenna
Flying high (Altitude higher than 10 meters, antennas should be placed downwards) Flying low (Altitude lower than 10 meters, antennas should be placed upwards) 2020 SIYI Tech All Rights Reserved...
Page 32 The two receiver antennas should be placed apart from each other with a distance not less than 50 mm. To get the best transmission performance, please make sure that the antennas are not blocked or obstructed in operation. 2020 SIYI Tech All Rights Reserved...
Page 33: Siyi Tx App
AK28 User Manual V1.3 3 SIYI TX APP Users can configure AK28 ground unit in the pre-installed application “SIYI TX”. 3.1 Channels Channel settings of End Point, Middle Point, Channel Reverse, and Channel Mapping. 3.1.1 End Point AK28 ground unit’s default End Point range is between 1050 and 1950.
Page 34: Middle Point
Select a target channel and input your required maximum or minimum channel value. It’s done. 3.1.2 Middle Point The default Middle Point value is “0”. Select a target channel and input your required middle point value. It’s done. 2020 SIYI Tech All Rights Reserved...
Page 35: Channel Reverse
Select a target channel. Then touch the “Normal” or “Reversed” button. It’s done. 3.1.4 Channel Mapping AK28 ground unit has 13 physical channels, an RSSI channel, and 16 communication channels. Users are allowed to define or map the physical channels (buttons, switches, joysticks) and the RSSI channel to the communication channels freely.
Page 36: Datalink
About Datalink Settings Device ID: Display the device ID of the integrated Bluetooth module in AK28 ground unit. It shows as the Bluetooth name before matching. Connection: Supported datalink ports in AK28 ground unit.
Page 37: Connection
UART: Telemetry data goes through the built-in Android UART port. *Only for specific GCS, such as BOYING, JIYI, and VKFLY. *Developers can acquire SDK from SIYI to use the port for their GCS. USB COM: Telemetry data goes through the built-in CP2102 port.
Page 38: Flight Controller
Currently supported flight controller models are: JIYI (K3A or K++), BOYING (Paladin), PIX, VKFLY (V7AG), and Customized flight controllers. Mark Please make sure that AK28 ground unit and VD32 air unit are bound before switching flight controller type. 3.2.3 Baud Rate If your flight controller model was not found in the list, please choose “Custom”...
Page 39: System
AK28 User Manual V1.3 Mark Please make sure that AK28 ground unit and VD32 air unit are bound before configuring baud rate, otherwise it would fail. 3.3 System In “System Settings” page, you can bind the ground unit with the air unit, switch throttle type, and check production date.
Page 40: Bind
3.3.1 Bind Please follow the steps below to bind AK28 ground unit with VD32 air unit. 1. In “SIYI TX” application, go to “System” page, then touch “Bind - Start”. 2. Ground unit status indictor will turn to “Red Fast Blinking”. In “Bind” menu, it displays “Binding”.
Page 41: Throttle Type
Reboot the air unit when the binding process is finished and try to operate the ground unit to confirm if it is working. 3.3.2 Throttle Type Switch throttle joystick type. Available types are Mode 1, Mode 2, Mode 3, and Custom. 3.3.3 Joystick Deadzone 2020 SIYI Tech All Rights Reserved...
Page 42: Status
AK28 User Manual V1.3 3.4 Status Link Status page digitalized AK28 system’s transmission quality by displaying the link’s real-time status in numbers and percentage. About Link Status Loss Rate: Loss percentage of data package which failed to be received by the ground unit per second.
Page 43: Failsafe
AK28 User Manual V1.3 3.5 Failsafe After finishing binding your AK28 ground unit to VD32 air unit for the first time, please do configure the system with Failsafe function immediately. Failsafe function is to avoid model crash by keeping the air unit outputting the pre- configured channel value when the air unit lost communication with the ground unit.
Page 44 4. If you require a specific value in the channel, please turn on Failsafe switch first and turn the “Hold” button to “Custom”. Then input your required channel value. 5. After configuration, the channel would output the value if receiver lost communication to transmitter. Mark 2020 SIYI Tech All Rights Reserved...
Page 45 If your flight controller communicates with the air unit through S.Bus protocol, then it is unnecessary to configure AK28 system with Failsafe function(unless it is specially required by flight controller to trigger Failsafe function and switch to RTH, by holding a specific value in a channel).
Page 46: Datalinks
4.1 Communication with GCS through USB COM (Serial) Let’s take QGroundControl as an example. 1. In “SIYI TX” app, go to “Datalink”, and choose “USB COM” in “Connection”. 2. Open QGC, the software will pop up a window to ask if “Allow QGroundControl to access CP2102 USB to UART Bridge Controller?”...
Page 47 “57600”, then touch “OK” to return to the Comm Links page. 5. Touch the configured “Serial” connection and touch “Connect”, USB COM (Serial) connection is finished. Mark AK28 system supports different baud rates. This guide uses common baud rate “57600” for your reference. 2020 SIYI Tech All Rights Reserved...
Page 48: Communication With Gcs Via Bluetooth
4.2 Communication with GCS via Bluetooth Let’s take QGroundControl as an example. 1. In “SIYI TX” app, go to “Datalink”, and choose “Bluetooth” in “Connection”. 2. In Android OS, go to “System Settings - Bluetooth”, search the Bluetooth device with the same ID shown in “Device ID” (“SIYI 68********”), and pair.
Page 49 AK28 User Manual V1.3 5. Touch the Bluetooth device of which the name is starting with “SIYI-XXXXXXX”, then touch “OK” to go back to the Comm Links page. 6. Touch the configured “Bluetooth” connection and touch “Connect”, Bluetooth connection is finished.
Page 50: Solutions To Disconnection
4.3 Solutions to Disconnection If AK28 system failed to establish telemetry link with GCS, please try to follow the steps below to investigate possible reasons. 1. Confirm if the ground unit is bound with the air unit.
Page 51: Siyi Fpv App
AK28 User Manual V1.3 5 SIYI FPV APP SIYI FPV is an Android application developed by SIYI Technology and for configuring image transmission, displaying video stream, and monitoring link status on SIYI smart controllers, remote controllers, and FPV modules. 2020 SIYI Tech All Rights Reserved...
Page 52: Image Transmission
6.2 Solutions to No Image If AK28 ground unit failed to display image, please try to follow the steps below to investigate possible reasons. 1. Confirm if the ground unit is bound with the air unit and confirm if the camera is connected to the air unit.
Page 53 AK28 User Manual V1.3 Mark If you have done investigation by following all steps above, but the reason is still not located, please contact your dealer or SIYI immediately. 2020 SIYI Tech All Rights Reserved...
Page 54: Android Os
7.2 Import and Install App 7.2.1 Through SD Card Save files into your SD card and insert the card into the SD card slot at bottom AK28 ground unit. Copy the files from the SD card to AK28 system storage, then go to “Files”...
Page 55 AK28 Android storage, then go to “Files” in Android system to find the files and install. CAUTION Please try to simplify your AK28 Android system as much as possible and avoid install apps which are not useful to the system, in case of any unexpected issues during flight. CAUTION Please do not set up any type of passwords for your AK28 Android system.
Page 56: Firmware Upgrade
Before upgrading AK28 ground unit, it is necessary to prepare the tools and software below. ⚫ SIYI Assistant (PC Software) ⚫ AK28 Ground Unit Firmware ⚫ VD32 Air Unit Firmware Mark All the above software and firmware can be downloaded from the AK28 page on SIYI Official website from SIYI AK28...
Page 57 2. Use the upgrade cable and the upgrading tool to connect your PC’s USB port to AK28 ground unit’s DATA port. 3. Run “SIYI Assistant” and switch to the “Upgrade” page to check the ground unit’s current firmware version. 2020 SIYI Tech All Rights Reserved...
Page 58 5. Disconnect the ground unit from your PC. Use the upgrade cable to connect the air unit’s Micro-USB port to your PC’s USB port. Then repeat the above steps to upgrade the air unit firmware. 2020 SIYI Tech All Rights Reserved...
Page 59 Firmware Pack 5.X.X for Bootloader 5.X.X Ground unit and air unit firmware with different preface can work together. CAUTION “Upgrading Tool”, “Voice”, and “ConfigFile” does not have to be upgraded for AK28 ground unit. 2020 SIYI Tech All Rights Reserved...
Page 60: After-Sale Service
⚫ Product Defect ⚫ Product Damage SIYI products under the two situations can be sent back to SIYI for repairing. Defect products with valid warranty can be repaired for free. Defect products without valid warranty or damaged products should be charged of repair fees after repairing.
Page 61: Warranty
It is requested beyond seven (7) calendar days of receiving a product. A product sent to SIYI for Return & Refund Service does not include all original accessories, attachments or packaging, or any item is not in new or like-new condition, i.e., with cracks, dents, or scratches.
Page 62: 15-Day Replacement
Damage is caused to the product by uncontrollable external factors, including fire, floods, high winds, or lightning strikes. A product is not delivered to SIYI within seven (7) calendar days after Return & Refund Service confirmation is sent from SIYI.
Page 63 Damage is caused by uncontrollable external factors, including fires, floods, high winds, or lightning strikes. Received product has not been sent back to SIYI seven (7) calendar days after replacement confirmation from SIYI. Proof of damage during transit issued by the carrier cannot be provided.
Page 64 Charges may apply for services not covered by this Limited Warranty. Please contact SIYI for information specific to your location. Please note that the warranty service is only available in the respective SIYI service regions where you purchased your SIYI product.
Page 65 Damage caused by reliability or compatibility issues when using unauthorized third- party parts. Damage caused by operating the unit with a low-charged or defective battery. Products or parts with an altered identification label or from which the identification label has been removed. 2020 SIYI Tech All Rights Reserved...
Page 67 RF Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. 2020 SIYI Tech All Rights Reserved...

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