SYVECS LTD Btimu Module Software
Bubuka
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.
- Konéktipitas Bluetooth.
The Syvecs BTIMU Module has the following software features:
- CAN Bus Configuration: Adjustable data rates (125 kbps-1 Mbps+), software-controlled termination, and programmable speed output.
- Configurable I/O Kontrol: 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.
- Konéktipitas nirkabel:
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.).
- Alerts & Warnings: Define thresholds and receive real-time visual/audio alerts for critical conditions.
- Nyukcruk kinerja: 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.
- Data logging: Record CAN, GPS, and IMU data to mobile storage in CSV or Syvecs SView formats for later analysis.
Specifications / Maximum Ratings
Kaluaran
4 x Low Side Outputs (2Amp Puncak (100ms) 0.5Amp kontinyu)
Input
4 x 0-5v Voltage inputs
Antarbeungeut Komunikasi
USB For Updates and Configuration
2 x CAN 2.0B panganteur pikeun komunikasi jeung controller séjén atawa sistem logging
1 x Antarbeungeut Kline
Sasayogian tanaga
6 nepi ka 26V input voltage rentang
Fisik
IP67 Sealed Automotive Spec -40c to 125c.
1 x 18 way JAE connector.
IMU Technical Specifications
| Parameter | Kaayaan tés | Data |
| 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 | Min 50 |
Pinout
NOTE REVERSED NUMBERS OF THE PINS – RIGHT TO LEFT
| PEDARAN | CONNECTOR 18 way JAE | ||
| NOMOR BAGIAN | MX23A18SF1 | ||
| CATATAN: | Pins: M23S05K351, Blanks: M120-55780 | ||
| Syvecs Pedaran | Pin | Tugas skala | Catetan |
| 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 | Taneuh Daya Utama | |
| PWR GND | 4 | kakuatan Ground | |
| CAN1 Low | 5 | CAN 1 Low – Default 500kb | |
| CAN0 Low | 6 | CAN 0 Low – CAN FD enabled* | |
| AN Taneuh | 7 | Tanah Analog | |
| Masukan Analog 4 | 8 | AN4 (TH) : C1-08 | 0-5V Analogue input/Temp Input (Fixed 3K pull up to 5v) |
| Masukan Analog 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 Pasokan | 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 Kaluar | 16 | 5V reference output (max 500mA) | |
| Masukan Analog 3 | 17 | AN4 (TH) : C1-17 | 0-5V Analogue input/Temp Input (Fixed 3K pull up to 5v) |
| Masukan Analog 1 | 18 | AN1 (5V) : C1-18 | 0-5V Analogue input |
*with future firmware update
Pamasangan
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 Pedaran | Pin | Catetan |
| kakuatan Ground | 3 | Main ECU power Ground |
| 12v Ignition Supply | 12 | Ignition Switched 2A fuse protected 12V supply |
Connections – Outputs
Low Sisi Kaluaran
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.
| Nomer Pin | Fungsi | Tugas skala |
| 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
Sénsor/Analog Grounds (AN Grounds)
| Nomer Pin | Fungsi |
| 7 | ANGND1 |
5V diatur suplai
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.
| Nomer Pin | Fungsi |
| 16 | 5V kaluar |
Connections – Inputs
The Syvecs BTIMU Module has 4 programmable inputs available of two different types.
| Nomer Pin | Input | Tugas skala | Catetan |
| 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.
| Nomer Pin | Fungsi | Catetan |
| 6 | CAN0 Low | 1 Mbps |
| 15 | CAN0 Luhur | 1 Mbps |
| 5 | CAN1 Low | 500 Kbps |
| 14 | CAN1 Luhur | 500 Kbps |
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 – PENTING: 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.
Catetan: 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 - Akselerometer
| Bait 1 | Bait 2 | Bait 3 | Bait 4 | Bait 5 | Bait 6 | Bait 7 | Bait 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. | Teu kapake | ||||
ID 684h - Giroskop
| Bait 1 | Bait 2 | Bait 3 | Bait 4 | Bait 5 | Bait 6 | Bait 7 | Bait 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. | Teu kapake | ||||
CAN1 – 500Kbps
ID F3h - Giroskop
| Bait 1 | Bait 2 | Bait 3 | Bait 4 | Bait 5 | Bait 6 | Bait 7 | Bait 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. | Teu kapake | ||||
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:
| panjangG | latG | vertG | pitch | nguap |
ngagugulung |
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:
| panjangG | latG | vertG | ngagugulung | pitch |
nguap |
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.
Teras sorot LatG/Long/VertG/Yaw/Pitch/Roll tur pilih Reset, dituturkeun ku Set.
The Long G/Lat G will read 0 now when the car is level.
Catetan: Please ensure the car is flat and level when carrying this out.
Motec Calibration and Setup
runtuyan M1
The Syvecs CANBT CANO can be connected to Can1, Can2 or Can3 on the M1 Series of Ecu’s.
Inpormasi Gyro/IMU kedah sumping via protokol Bosch MM5. Pilih Bosch dina Sadaya Calibrate sareng setel Pesen CAD ID sapertos di handap ieu.
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.
Nyambungkeun ka App
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.
Menu Utama
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:
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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. |
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Sub Menu. It allows access to settings and further advanced options. |
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This is the calibration menu. It allows user switching between Calibrations/Launch Control/Anti-Lag/and user defined Switches. |
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Dash View select. Choose from a range of pre-defined, user customisable dash layouts. |
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Head up display mode. This inverts the screen for reflecting from the windscreen as a Head up display. |
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Data Log start button. |
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Instant screen record. Allows users to record the dash in real time to video on the device. |
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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:
Dina urutample 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 Vérsi 1.0
SCal Software Version 2.17.11
Hardware Version X.x
Vérsi Parangkat Lunak 1.3.1
13/09/2025
Dokumén ieu dimaksudkeun pikeun dianggo ku panongton téknis sareng ngajelaskeun sajumlah prosedur anu berpotensi bahaya. Pamasangan kudu dilaksanakeun ku jalma kompeten wungkul.
Syvecs sareng panulis henteu nampi tanggung jawab pikeun karusakan anu disababkeun ku pamasangan atanapi konfigurasi alat anu salah.
Punten Catet yén kusabab sering ngarobih firmware sababaraha windows tiasa henteu sami sareng anu ditunjukkeun ku manual. Upami kitu mangga ngahubungi Tim Tech Syvecs pikeun Pitulung.
Dokumén / Sumberdaya
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SYVECS LTD Btimu Module Software [pdf] Pituduh pamaké Btimu Module Software, Module Software, Software |