TX12 Instruction manual Version：1.
WWW.RADIOMASTERRC.COM TABLE OF CONTENTS 1. Overview.......................................................................................... Error! Bookmark not defined. 1.1. Introduction...................................................................... Error! Bookmark not defined. 1.2. Safety instructions.......................................................... Error! Bookmark not defined. 1.3. Manual and Firmware download...............................Error! Bookmark not defined. 1.4.
4.2.3 RADIO SETUP Instructions............................................................................. 24 4.2.4 GLOBAL FUNCTIONS instructions............................................................... 25 4.2.5 TRAINER instructions....................................................................................... 25 4.2.6 HARDWARE.......................................................................................................... 25 4.2.7 VERSION.............................................
1. Overview 1.1. Introduction Thank you for purchasing the RadioMaster TX12 2.4GHz transmitter. This versatile transmitter is designed for both beginner and professional pilots alike. In order to operate this product in a safe and effective manner, please carefully read this manual prior to use. The information contained in this manual is subject to change without notice. The TX12 is optimized for fixed winged aircraft, gliders, helicopters and multirotors aircraft.
1.3. Manual and Firmware Download The TX12 comes pre-installed with standard OpenTX firmware. To download the latest software manual, visit the RadioMaster website: https://www.radiomasterrc.com To download the latest firmware for your TX12 radio control, visit the OpenTX website: https://www.open-tx.org 1.4. Important note on firmware. The TX12 comes pre-installed with the most stable firmware at time of manufacture.
1.6. Important note on Power and charging precautions. The TX12 has built-in USB charging function for 2cell 7.4v Battery packs (2 x 3.70v Lithium cell packs). The charging circuit is only suitable for 2x 3.70v lithium-ion 18650, 2 x 21700 3.70v lithium-ion (21700 2s 7.40v Lithium-Ion pack), 2x 3.70v Lipoly batteries (2s 7.40v Lipo battery pack) or 2 x 3.60v lithium-ion provided the 3.60v Li-ion cells are able to be charged to 4.20v per cell – CHECK YOUR BATTERY MANUFACTURERS DATA SHEET.
1.7. Note about this guide. This guide covers basic information about your radio. OpenTX software is very powerful and has a large number of programming and mixing functions. Please visit the site below for a comprehensive software installation guide for more detailed instructions https://www.open-tx.org 1.8. Specifications Exterior size： 170*159*108mm Weight： 363g（Excluding battery） Frequency： 2.400GHZ-2.
1.9. Warranty and Repair If you experience any problems with your radio-control hardware, please keep proof of purchase and contact the retailer where you purchased TX12. Also visit https://www.radiomasterrc.com/ for technical support or to find a repair agent in your region. 1.10. Firmware Update and OpenTX Information For the latest news and information on OpenTX firmware from development team, please visit the OpenTX website at https://www.open-tx.org.
2. OpenTX Companion software (OpenTX Companion) The OpenTX Companion radio control support software is used for many different tasks, such as loading OpenTX firmware to the radio, backing up model settings, editing model settings, and running the radio simulator. You can run OpenTX Companion software on multiple computer platforms. OpenTX Companion software supports common systems such as Windows, Mac OS X, and Linux.
At this point, the OpenTX Companion software installation is complete.
2.2. Using Companion software to upgrade radio controller firmware After the above settings are completed, click the firmware download button to download the firmware. Note: The RadioMaster TX12 radio control is pre-installed with stable and reliable OpenTX firmware when it leaves the factory. If there is no special need, please do not update the firmware unnecessarily. Incorrectly flashing firmware may leave your radio inoperable.
Before writing the firmware for the first time, you need to replace the STM32 BOOTLOADER driver to ensure that the OpenTX Companion software can recognize this hardware type and write the firmware correctly. The replacement method is as follows: Download the latest version of the universal driver replacement software Zadig.exe from https://zadig.akeo.ie/ A. In the Windows system, right-click Zadig-2.4.exe and select Run as administrator B.
At this point, the firmware of the radio control is successfully written. Unplug the USB-C (TYPE-C) and proceed to the first boot procedures.
3. First boot Press and hold the power button to boot. Before entering the main interface, the system will check the position of the throttle stick and switch and other startup conditions. If the startup conditions are not met, there will be a corresponding error prompt. You need to clear it or press any key to move forward Throttle warning: This is a warning that the throttle is not at the lowest position when the radio is turned on.
SD card warning: If the SD card file version used does not match the radio controller firmware version, this warning will appear. The figure requires 2.3V0026 version (the SD card content needs to be updated when upgrading the firmware). First page: Below is an example of the default first page of the system, you can customize the display elements in the page as required.
3.1. B. Scroll to RADIO SETUP, and enter the battery level range in the battery meter range as shown below. C. On the current page, turn the scroll wheel to find Battery low (low voltage alarm), and fill in the alarm voltage as shown below. When the radio-control voltage is lower than the current set voltage, the system will play a voice alert and report that the battery voltage is low.
3.2. Calibrating Gimbals Each TX12 is calibrated in the QC process however due to varying shipping conditions we suggest to calibrate your radio before first use. A. In the system settings, scroll to the HARDWARE page, select the Calibration item, and press OK to enter the settings. B. Follow the text prompts at the top for calibration. The first step prompts, press the confirmation key to start C. In the second step, place all the gimbals, knobs, and side sliders in the middle position.
D. For the third step, move all the gimbals, knobs, and side sliders of to their respective maximum and minimum positions. The system will record the maximum and minimum values. After all the above steps are completed, press Enter key to complete the calibration, and the system automatically returns to the previous page.
3.3. Set the default Gimbal mode and the default channel output order.
4. Radio menu 4.1. Main interface The default startup screen is as follows. The user can modify the content to be displayed to customize the main interface. The main interface can display the following information: Model name, TX voltage, gimbal/switch position and trim location. Scroll to show the channel position, values and channel monitor 4.1.1. Reset, Statistics and About Press and hold the ENT key to show the Reset, Statistics and About information.
4.1.2. Telemetry quick-access By pressing TELE from the main interface, vital telemetry information can be quickly displayed. Radiomaster has set two values- Time and Batt (system battery voltage) as defaults; these values can be changed by the user- displaying up to 4 values 4.2. System settings Long press the left SYS button to enter the system setting page. The system setting page is divided into 7 sections. 4.2.
4.2.2 SD CARD SD card page. In this page, you can view the contents of the SD card, and quickly set the startup screen, model pictures, and the function of flashing the built-in / external module firmware from firmware files loaded on to the SD Card.
4.2.3 RADIO SETUP The radio-control setup page, this page is the basic functions of the radio control and the settings in the default parameters of the radio control.
4.2.4 GLOBAL FUNCTIONS This page can customize various global functions. Global functions are similar to special functions in model parameters, but global functions are shared by all model, while functions in model parameters are only used by the current model. 4.2.5 TRAINER Trainer aka Coach function page. In this page, you can set the control ratio of each channel from the student mode radio control in the coach mode, and the intervention ratio of the radio control in the coach mode. 4.2.
4.2.7 VERSION On this page, you can view the radio controller hardware type, OpenTX firmware version, and the functional items included in the current firmware. 4.3. Model selection 4.3.1. Create model and model selection In the main interface, press and hold the ENT key to show the menu Select to enter the model selection page, which is used to select, create, switch, delete and copy models. Note: The model currently in use cannot be deleted, only models that are not in use can be deleted.
4.4. Model settings (Model Setup） 4.4.
Model Setup Detailed options： Model name：Enter your model name here. Model image：You can select a picture file as the model logo in the BMP folder of the SD card. Pictures can be viewed using the SD card manager. Timer1-3： Up to 3 fully programmable timers that can count up or down.
Extended trims：Fine-tuning extension, allowing fine-tuning to cover the entire gimbal range, instead of ± 25% Display trims：Modify the precision of the fine-tuning step. The accuracy can be modified according to actual requirements.
Internal RF：Built-in wireless RF module, built-in 4in1 multi-protocol RF module, please refer to multi-protocol RF module manual for usage External RF ： External RF module, compatible with many mainstream RF modules Trainer：Trainer Mode Mode： Master/Jack Slave/Jack Audio cable connection, coach host mode Audio cable connection, student slave mode Master/Bluetooth Bluetooth wireless connection, coach mode (requires external Bluetooth module) Slave/Bluetooth Bluetooth wireless connection, student slave m
Mode name Trims Fade in Fade Out Check FM0 Trims Define a name for the flight mode Adjust the fine-tuning value of 1-6 channels according to your actual needs Slow Ease In / Ease Out Time Settings At the bottom of the screen (below FM8) you are reminded to check the fine-tuning of each flight mode. According to the currently selected FM number, the corresponding reminder message is displayed, for example, if the flight mode FM2 is active, it will display "Check FM2 trims" 4.4.3.
"Global" means that global variables can be used to set pages for the entire model, but not for all models. Each model has its own set of global variables. There are 9 global variables available. 0 being the default value. Modify the value directly or press and hold the ENT key to pop up the sub-menu to change the type and parameter of the global variable. Name: Setting name Unit: Units, switchable between normal and% Precision: Precision, which can be used in decimal mode.
To set an entry, press and hold the ENT key on the current entry and a submenu will pop up Select Edit to change settings Input name: Name of the current entry. Use the scroll wheel to select a letter or number. Press and hold the ENT key to switch between upper and lower case. Press the ENT key to switch to the next character.
Weight: Normal range is a value between ± 100% will be zoomed to the gimbal operation. If you enter a negative value, for example -100% means reverse the output. Note that channel inversion should not use negative values on the Inputs page, and to reverse channels should be reversed on the Outputs page. Offset: Midpoint offset setting Curve: Curve settings Diff Adjust the stroke amount on one side with the midpoint as the boundary Expo Expo curve setting.
Side: Unilateral setting with the midpoint as the boundary. No matter how this item is set, it will be set to unilateral effect by Side. x>0 All below the midpoint are fixed at 0, and normal output above the midpoint x<0 All above the midpoint is fixed at 0, and normal output below the midpoint Trim: You can choose whether the fine-tuning is effective for this entry, or you can define a fine-tuning that affects this article separately. 4.4.5.
By default, all lines on the same channel are added together, and the next line can choose to be superimposed or multiplied with the channel value of the previous line, and replaced completely. Please note that the currently active row of settings will be displayed in a bold font, making it easy to recognize the item currently in use at a glance. The CH1 channel shown in the figure is input by the Ail gimbal, and the three states of the SA switch are used to switch three stroke amounts.
Mix name: Name setting Use the scroll wheel to select letters and numbers, and press and hold the ENT key to switch between upper and lower case. Short press the ENT key to set the next character. Source: Long press the ENT key to pop up the input source category menu. Weight: Channel travel amount, the range is -500 / + 500. The default value is 100. Negative values indicate reverse channel output. Offset: Midpoint offset, you can add the offset of the input value, positive or negative.
Modes: Select the corresponding flight mode, and the output trimming value that affects this entry can be set by the flight mode entry Switch: Select the switch to activate this item (Note: This setting is added to this item to add multiple lines of different settings to switch, if there is only one line setting, do not set the activation switch, otherwise the switch will cause this item to be completely invalid).
To quickly set the high/low and center points, press enter on the desired channel to open the quick-access menu Select Edit to change specific output values 4.4.7. Curves The curve can be used to modify the control response in the Inputs, Mixes, or Outputs page. Standard curves containing Expo and Differential can be used directly in these sections. This page is used to customize any kind of curve.
X value represents input, such as the course of the gimbal from low to high high Y value represents output, such as the process of channel output from low to Name：Name the curve, easy to find when recalling the curve in other settings Type：Curve type Standard Standard type, only Y point (output) can be edited, ranging from -100 to 100 Custom Custom types, both X (input) and Y (output) points are editable, ranging from -100 to 100 Count：The number of points on the curve, between 2 and 17.
Mirror：Mirror the curve vertically. Clear：Clear the current curve. 4.4.8. Logic switches（Logical Switches） The logic switch is a user-programmed virtual switch. Like the physical switch, the logic switch is also a switch, but unlike a physical switch, which can be moved by hand, the logic switch is an internal switch triggered by certain user-programmed conditions.
is turned on when the thr gimbal is less than -90%.
gimbal are equal, the type of v2 at this time is not digital data, but a source a>b Triggered when parameter v1 is greater than parameter v2 a
4.4.9. Special Functions The combination of logic switches, special functions, global variables, and pass back items opens up a variety of exciting new features for the RadioMaster TX12. E.g.
Each setting is activated with a trigger switch. You can select physical switches, logical switches, fine-tuning buttons, and flight mode. There are two other special options, ON and Ones (which are always enabled when the machine is turned on), and One (which is performed only once when the machine is turned on) Press and hold the ENT key to enter the sub-menu for displaying sources by category. Scroll up or down to select the desired category and press the ENT key.
anywhere Play a sound Play Sound ! 1x: Play sound once, not at startup 1x: Play sound once. 1s-60s: broadcast at intervals (seconds) Play Track Play wav file in SD card, single broadcast and loop broadcast are the same as above Play Value Voice broadcast value, can broadcast values from any source, such as real-time values such as gimbal, voltage, altitude, time, etc. Lua Script: Call the specified script, and the script file should be placed in the / SCRIPTS / FUNCTIONS / folder of the SD card.
4.4.10. Custom Scripts Custom script allows you to customize the functions of the radio controller. The scripting language used is Lua, which is a lightweight embeddable scripting language. You need to implement custom functions in the radio controller. There are three basic types: One-time: The script runs only once and then terminates. Initialization of some parameters, and a wizard for creating a new model. The script is stored in the SCRIPTS folder of the SD card.
4.4.11. Digital Transmission and Telemetry Each value received via digital transmission is considered a separate sensor with its own properties. Multiple identical sensor types can be connected, but the physical ID must be changed. For example, a sensor for each battery in a 2-6S lithium battery, or monitoring individual motor currents in a multi-motor model. Each sensor can be reset individually with special functions.
4.4.12.
