SYVECS LTD Btimu Module Software
Introduction
The Syvecs BTIMU Module is designed to provide even more control to our engine control units with accurate acceleration forces for 6 axis and in addition the unit also has Bluetooth Low Energy (BLE) communications built in.
The Syvecs BTIMU Module has the following hardware features:
- Two CAN interfaces one with CAN-FD capability.
- Inbuilt IMU/Accelerometer.
- Bluetooth туташуусу.
The Syvecs BTIMU Module has the following software features:
- CAN шинасынын конфигурациясы: Adjustable data rates (125 kbps-1 Mbps+), software-controlled termination, and programmable speed output.
- Конфигурациялануучу I/O Контролдоо: Digital inputs/outputs fully configurable via app. Supports user-defined functions (e.g., lap trigger, shift light, relay control).
- DBC Import: Native support for industry-standard CAN DBC files. Compatible with major ECUs including Syvecs, MoTeC, Pectel, and Link.
- OBD-II Support: Read/clear DTCs and stream live data (up to 200 Hz depending on vehicle CAN setup).
- Car Presets: Pre-configured CAN setups for popular vehicles (e.g., Nissan R35) simplify deployment.
- CAN TX Functions: Transmit custom messages, emulate sensors, or send commands back to ECUs.
- Зымсыз туташуу:
BLE pairing with smartphones, tablets, and in-dash displays. Supports secure pairing with programmable PIN. - Custom Dash Layouts: Fully customizable interface showing live values (RPM, temperatures, GPS speed, etc.).
- Эскертүүлөр жана эскертүүлөр: Define thresholds and receive real-time visual/audio alerts for critical conditions.
- Аткарууну көзөмөлдөө: supports 0-100 km/h, % mile, and Drag Tree metrics with run history storage.
- Track Mapping: Auto-generated circuits with sector timing and lap comparison – Only if GPS Module is fitted on same CANBUS
- Video Overlay: Overlay CAN and GPS data onto live video recordings. Export annotated video for review or social sharing.
- Маалыматтарды каттоо: Record CAN, GPS, and IMU data to mobile storage in CSV or Syvecs SView formats for later analysis.
Specifications / Maximum Ratings
Чыгуулар
4 x Low Side Outputs (2Amp Чоку (100мс) 0.5Amp үзгүлтүксүз)
Киргизүүлөр
4 x 0-5v Voltage кириштер
Коммуникация интерфейстери
USB For Updates and Configuration
2 x CAN 2.0B интерфейси башка контроллерлор же каттоо системалары менен байланышуу үчүн
1 x Kline Interface
Электр камсыздоо
6дан 26Вга чейин кириш томtage диапазону
Физикалык
IP67 Sealed Automotive Spec -40c to 125c.
1 x 18 way JAE connector.
IMU Technical Specifications
| Параметр | Сыноо шарттары | Маалыматтар |
| Linear acceleration measurement range | 0-4 | |
| Magnetic measurement range | 0-8 | |
| Angular rate measurement range | 500 | |
| Linear acceleration sensitivity | Linear acceleration FS = +4 g | 0.122 |
| Magnetic sensitivity | Magnetic FS = +8 gauss | 0.29 |
| Angular rate sensitivity | Angular rate FS = ±500 dps | 17.5 |
| Linear acceleration typical zero-g level offset accuracy | FS = ±8 g | 90 |
| Angular rate typical zero-rate level | FS = ±2000 dps | 30 |
| Magnetic disturbance field | Zero-gauss offset starts to degrade | Мин 50 |
Pinout
NOTE REVERSED NUMBERS OF THE PINS – RIGHT TO LEFT
| СҮРӨТТӨМ | CONNECTOR 18 way JAE | ||
| БӨЛҮК № | MX23A18SF1 | ||
| ЭСКЕРТҮҮЛӨР: | Pins: M23S05K351, Blanks: M120-55780 | ||
| Syvecs Description | Pin | Scal Assignment | Эскертүүлөр |
| LowSide 4 | 1 | LSO4 : C1-01 | Low Side output 2A Peak / 0.5A Continuous |
| LowSide 2 | 2 | LSO2 : C1-02 | Low Side output 2A Peak / 0.5A Continuous |
| PWR GND | 3 | Негизги электр станциясы | |
| PWR GND | 4 | Power Ground | |
| CAN1 төмөн | 5 | CAN 1 Low – Default 500kb | |
| CAN0 төмөн | 6 | CAN 0 Low – CAN FD enabled* | |
| AN Ground | 7 | Аналогдук жер | |
| Аналогдук киргизүү 4 | 8 | AN4 (TH) : C1-08 | 0-5V Analogue input/Temp Input (Fixed 3K pull up to 5v) |
| Аналогдук киргизүү 2 | 9 | AN2 (5V) : C1-09 | 0-5V Analogue input |
| LowSide 3 | 10 | LSO3: C1-10 | Low Side output 2A Peak / 0.5A Continuous |
| LowSide 1 | 11 | LSO1 : C1-11 | Low Side output 2A Peak / 0.5A Continuous |
| 12V менен камсыз кылуу | 12 | Switched Ignition Fused Supply | |
| KLINE | 13 | KLINE | |
| CAN1 Hi | 14 | CAN 1 High – Default 500kb | |
| CAN0 Hi | 15 | CAN 0 High – CAN FD enabled* | |
| 5V Out | 16 | 5V reference output (max 500mA) | |
| Аналогдук киргизүү 3 | 17 | AN4 (TH) : C1-17 | 0-5V Analogue input/Temp Input (Fixed 3K pull up to 5v) |
| Аналогдук киргизүү 1 | 18 | AN1 (5V) : C1-18 | 0-5V Analogue input |
*with future firmware update
Орнотуу
The BTIMU unit includes a 6 axis accelerometer, and it is important that unit is fitted in the correct location and orientation to ensure accurate readings.
The unit should be fitted as central as possible within the vehicle between driver and passenger seats. It must be installed level with the connector plug pointing towards the front of the car.
In applications where heavy vibrations are present due to solid engine mounts or similar, it is advised to mount the unit using some rubber mounts to absorb some of the vibrations.
Connections – Power
The Syvecs BTIMU Module requires switched ignition power as follows:
| Syvecs Description | Pin | Эскертүүлөр |
| Power Ground | 3 | Main ECU power Ground |
| 12v Ignition Supply | 12 | Ignition Switched 2A fuse protected 12V supply |
Connections – Outputs
Төмөн каптал чыгаруулар
The low side outputs pull to ground when ‘on’. They offer full pulse width modulation control. The outputs can be used to drive up to 2A Peak / 0.5A Continuous. These are suitable for small solenoids/lights etc.
12V-Pull Up Option is also available on the Output if being used for digital signal output.
| Pin номери | Функция | Scal Assignment |
| 11 | LSO1 | LOW SIDE 1 |
| 2 | LSO2 | LOW SIDE 2 |
| 10 | LSO3 | LOW SIDE 3 |
| 1 | LSO4 | LOW SIDE 4 |
Connections – Sensor Supply and Grounds
Сенсор/ Аналогдук негиздер (AN негизи)
| Pin номери | Функция |
| 7 | АНГНД1 |
5V жөнгө салынуучу камсыздоо
Sensors and miscellaneous analogue inputs have their own power pins which need a stable power supply, the 5v Regulated outputs are provide a stable/clean 5v which can handle 500ma Maximum. The regulated 5V pins are able to support multiple sensor connections as shown in the diagram below.
| Pin номери | Функция |
| 16 | 5 В ЧЫГЫШЫ |
Connections – Inputs
The Syvecs BTIMU Module has 4 programmable inputs available of two different types.
| Pin номери | Киргизүү | Scal Assignment | Эскертүүлөр |
| 18 | AN1 | AN1 (5V) : C1-18 | 0-5v |
| 9 | AN2 | AN2 (5V) : C1-09 | 0-5v |
| 17 | AN3 | AN4 (TH) : C1-17 | Fixed 3K pull up to 5v |
| 8 | AN4 | AN4 (TH) : C1-08 | Fixed 3K pull up to 5v |
Connections – CAN Bus
There are two CAN interfaces, CANO and CAN1. CANO is CAN FD capable. Both Can buses have software enabled termination available.
The Syvecs BTIMU module can be connected to Can1 or Can2 on the S8/S12.
With the S7Plus its best to use Can2. If CAN2 is used for an expander with Slave CAN then connect CAN1 of the GPS to CAN1 of the S7Plus.
| Pin номери | Функция | Эскертүүлөр |
| 6 | CAN0 төмөн | 1 Мбит/сек |
| 15 | CAN0 Жогорку | 1 Мбит/сек |
| 5 | CAN1 төмөн | 500 Кбит/сек |
| 14 | CAN1 Жогорку | 500 Кбит/сек |
OBD2 Connections we recommend using CAN1 as this is setup as default to 500kb which all OBD2 systems are set at.
Example OBD2 wiring below – МААНИЛҮҮ: OBD2 12v is battery source so if fitting for a permanent install its advisable to wire to the 12v supply to the BTIMU from an Ignition 12v source.
CAN Bus Speed Selection
Whilst the default can speeds are CANO 1 Mbps and CAN1 500 Kbps, these can be changed via USB connection to the GPSBT using SCal. It is not possible to change CAN speed via the Syvecs Dash app.
Connecting the unit directly to a PC and then connecting via SCal will show the following:
The above will be especially useful for direct CAN device connections where termination is also required.
Default CAN Data Stream
The default data streams are compatible with our previous GPS units, and the BTIMU can sit on the same CAN bus as any of our previous GPS devices.
Эскертүү: To prevent clashing of frame data where a BTIMU module is fitted along side our previous GPS modules, the default CAN stream does not transmit IMU information, and would need to be enabled manually in order to do so.
When enabled the complete data stream is as follows:
CANO-1Mbps
ID 679h & 690h – GPS Position (LSB) – Motec M1 (Base ID 0x690h)
ID 683h – Акселерометр
| Байт 1 | Байт 2 | Байт 3 | Байт 4 | Байт 5 | Байт 6 | Байт 7 | Байт 8 |
| Latitudinal acceleration in thousands of G as a signed 16-bit value. Positive values represent acceleration to the left (as when turning right). Negative values represent acceleration to the right (as when turning Left) | Longitudinal acceleration in thousandths of a G as a signed 16-bit integer. Positive values represent increasing forward speed, negative values indicate decreasing. | Vertical acceleration in thousandths of a G as a signed 16-bit integer. Positive values represents upwards. Negative downwards. | Колдонулбаган | ||||
ID 684h – Гироскоп
| Байт 1 | Байт 2 | Байт 3 | Байт 4 | Байт 5 | Байт 6 | Байт 7 | Байт 8 |
| Roll in tenths of a degree per second as a signed 16-bit integer. Positive values indicate roll to the right. Negative values indicate roll to the left. | Pitch in tenths of a degree per second as a signed 16-bit integer. Positive values indicate upward pitch. Negative values indicate downward. | Yaw in tenths of a degree per second as a signed 16-bit integer. Positive values indicate yaw to the right. Negatives values to the left. | Колдонулбаган | ||||
CAN1 – 500Kbps
ID F3h – Гироскоп
| Байт 1 | Байт 2 | Байт 3 | Байт 4 | Байт 5 | Байт 6 | Байт 7 | Байт 8 |
| Roll in tenths of a degree per second as a signed 16-bit integer. Positive values indicate roll to the right. Negative values indicate roll to the left. | Pitch in tenths of a degree per second as a signed 16-bit integer. Positive values indicate upward pitch. Negative values indicate downward. | Yaw in tenths of a degree per second as a signed 16-bit integer. Positive values indicate yaw to the right. Negatives values to the left. | Колдонулбаган | ||||
Syvecs Configuration
S7+ S8 and S12 ECUs
To enable in Scal users need to select the GPS-AG50 as shown below in Datastreams as well as set the Receive Bus its wired to. A Device – Program is needed after this selection to program the ECU and bring the GPS online.
After enabling the logging/gauge items below will become available:
| longG | latG | vertG | бийиктик | эээ |
түрмөк |
S6-I/ S6Plus/ S7-I
The Syvecs GPS CANBTBT Data is picked up automatically on the S6Plus & S6/S7-1 with Firmware 1.82+ after wiring onto the Can1 (C8 & C9) (500kb CAN bus). To pickup the Accelerometer data from the module, users will need to enable the Accel Rx Enable and Gyro Rx Enable under I/O Configuration.
Important! Make sure no Acceleration sensors are defined in the Pin Assignments, they will be picked up automatically.
After enabling the logging/gauge items below will become available:
| longG | latG | vertG | түрмөк | бийиктик |
эээ |
Syvecs Accelerometer Calibration
After mounting correctly you need to reset the sensor corrections in Scal for the accelerometers. To do this click on Device – Sensor Corrections from the top Scal menu.
Андан кийин LatG/Long/VertG/Yaw/Pitch/Rollди белгилеп, Баштапкы абалга келтирүү, андан кийин Орнотуу дегенди тандаңыз.
The Long G/Lat G will read 0 now when the car is level.
Эскертүү: Please ensure the car is flat and level when carrying this out.
Motec Calibration and Setup
M1 сериясы
The Syvecs CANBT CANO can be connected to Can1, Can2 or Can3 on the M1 Series of Ecu’s.
Gyro/IMU маалыматы Bosch MM5 протоколу аркылуу келиши керек. Бардык калибрлөөдөн Bosch тандаңыз жана CAD ID билдирүүлөрүн төмөндөгүдөй орнотуңуз.
Bluetooth Features and Functions
The Syvecs Syvecs Dash App provides a very comprehensive and powerful performance and data analysis tool.
To download the App, Search either Apple App Store or Google Play Store for Syvecs Dash.
For correct functionality, follow the prompts when installation is in progress to allow access to 
where asked. Its also important to disable battery saving whilst the app is in use, or unexpected behaviour is likely. It uses Bluetooth Low Energy and will need access to location services for correct GPS function.
Колдонмого туташуу
Connection between the device and the module is automatically carried out. Pairing is not necessary.
Once connected the home screen/dash will be shown as below:
Clicking on the boƩom right gear will bring up the main menu.
Башкы меню
Useful tip! The main menu is context sensitive and available options will depend on the selected Dash currently in use.
However by way of an example the default dash display is as follows:
 |
Edit. Allows users to change any data object shown on the main dash screen. For example you may have MAP shown, but instead you want to replace it with TPS. |
 |
Sub Menu. It allows access to settings and further advanced options. |
 |
This is the calibration menu. It allows user switching between Calibrations/Launch Control/Anti-Lag/and user defined Switches. |
 |
Dash View select. Choose from a range of pre-defined, user customisable dash layouts. |
 |
Head up display mode. This inverts the screen for reflecting from the windscreen as a Head up display. |
 |
Data Log start button. |
 |
Instant screen record. Allows users to record the dash in real time to video on the device. |
 |
Help video and advice at your finger tips. |
Changing Dash Data Items.
Edit example: In edit mode the screen will be highlighted as follows:
Clicking on the cog again will show connection information:
мурдагыample above BT CAN and I/O indicating blue is showing a good connection. GPS shows white in this example as not locked onto GPS satellites. Yellow would indicate a weak signal.
Clicking on Close will take you back to the main screen.
BTIMU Module
Manual Version 1.0
SCal Software Version 2.17.11
Hardware Version X.x
Программалык камсыздоонун версиясы 1.3.1
13/09/2025
Бул документ техникалык аудитория тарабынан колдонууга арналган жана потенциалдуу кооптуу болгон бир катар процедураларды сүрөттөйт. Орнотуулар компетенттүү адамдар тарабынан гана жүргүзүлүшү керек.
Syvecs жана автору жабдууларды туура эмес орнотуудан же конфигурациялоодон келип чыккан зыян үчүн эч кандай жоопкерчилик тартпайт.
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Документтер / Ресурстар
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SYVECS LTD Btimu Module Software [pdf] Колдонуучунун колдонмосу Btimu Module Software, Module Software, Software |