Freematics OBD-II Emulator with J1850 PWM
Miniature OBD-II emulator adding J1850 PWM protocol support alongside standard diagnostic protocols. Connects via USB and BLE; smallest form factor in the Freematics emulator range.
Pinout
- OBD pin 16Type · Power
- OBD pin 45Type · Ground
- CAN-HType · Signal
- CAN-LType · Signal
- J1850+Type · Signal
- J1850-Type · Signal
- K-LineType · Signal
| Pin | Type |
|---|---|
| OBD pin 16 | Power |
| OBD pin 45 | Ground |
| CAN-H | Signal |
| CAN-L | Signal |
| J1850+ | Signal |
| J1850- | Signal |
| K-Line | Signal |
Pin details
7 connections- OBD pin 16Power
- OBD pin 45Ground
- CAN-HSignal
- CAN-LSignal
- J1850+Signal
- J1850-Signal
- K-LineSignal
Start wiring
UART · SPI · 3.3 V · 5 V · Breakout
Seeed describes MDBT50Q-1M and MDBT50Q-P1M as Bluetooth 5.0 / BLE modules based on Nordic nRF52840, with GPIO, SPI, UART, I2C, I2S, PWM, …
Module pins: OBD pin 16, OBD pin 4/5, CAN-H, CAN-L, J1850+, J1850-, K-Line. Schematik maps them to your board in the app.
Bluetooth
70 other optionsBLE 5-era modules (nRF52840, MDBT50Q), XIAO MG24 boards with Matter-over-Thread, Bluefruit UART/SPI bridges, HM-11 serial modules, and BLE sniffers cover different jobs and different hosts.
2.4 GHz Bluetooth Low Energy 4.0 Module V-13051 (-4 dBi) visual preview2.4 GHz Bluetooth Low Energy 4.0 Module V-13051 (-4 dBi)
AC8265 Wireless NIC, Dual-Band Wi-Fi 5, Bluetooth 4.2 visual previewAC8265 Wireless NIC, Dual-Band Wi-Fi 5, Bluetooth 4.2
Adafruit Bluefruit LE SPI Friend - Bluetooth® Low Energy visual previewAdafruit Bluefruit LE SPI Friend - Bluetooth® Low Energy
$17.50
Adafruit Bluefruit LE UART Friend - Bluetooth® Low Energy visual previewAdafruit Bluefruit LE UART Friend - Bluetooth® Low Energy
$17.50
Adafruit Feather nRF52 Bluefruit LE - nRF52832 visual previewAdafruit Feather nRF52 Bluefruit LE - nRF52832
Adafruit Feather nRF52 Pro with myNewt Bootloader - nRF52832 visual previewAdafruit Feather nRF52 Pro with myNewt Bootloader - nRF52832
Adafruit Feather nRF52840 Express visual previewAdafruit Feather nRF52840 Express
Ameba RTL8720CM IoT Development Board visual previewAmeba RTL8720CM IoT Development Board
Audio & BLE/SPP Pass-through Module - Bluetooth 5.0 visual previewAudio & BLE/SPP Pass-through Module - Bluetooth 5.0
AW-CB375NF Wireless NIC, Dual-Band Wi-Fi 5, Bluetooth 5.0/BLE visual previewAW-CB375NF Wireless NIC, Dual-Band Wi-Fi 5, Bluetooth 5.0/BLE
AX210 Mini-PCIe NIC, Tri-Band Wi-Fi 6E, 802.11ax, Bluetooth 5.3 visual previewAX210 Mini-PCIe NIC, Tri-Band Wi-Fi 6E, 802.11ax, Bluetooth 5.3
BLE Micro - Super Compact BLE Module visual previewBLE Micro - Super Compact BLE Module
Related groups
4 groups
600-6000MHz 5G Antenna visual previewCellular
Adafruit FONA GSM breakouts, the Gravity Air780EU 4G Cat 1 module, Dragino NB-IoT Shield-B8, Pycom FiPy, Quectel and SIMCom M.2 5G modems, and the RockBLOCK 9603 Iridium modem each target a different network tier.
Wireless & comms · Cellular · 58 parts
4G GNSS-RTK High Precision Positioning Kit (EMEA & Thailand, GPS / GLONASS / Galileo / BDS / QZSS) visual previewGNSS & GPS
Adafruit Ultimate GPS (PA1616S/PA1616D), NEO-6M and NEO-M9N u-blox breakouts, Gravity GNSS BeiDou boards with I2C/UART, and 4G or LoRa RTK kits — accuracy and constellation requirements split them.
Wireless & comms · GNSS & GPS · 68 parts
2mm 10-Pin XBee Header visual previewLoRa & RF
RFM95W and SX1262 LoRa transceivers, Wio-E5 LoRaWAN modules, SX1302 gateways, Digi XBee mesh radios, 433 MHz ASK serial links, Dragino IoT sensor nodes, and the SDRplay RSP2 wideband SDR receiver.
Wireless & comms · LoRa & RF modules · 94 parts
150M Miniature WiFi (802.11n) Module for Raspberry Pi visual previewNetworking
ESP8285, ATWINC1500, and EMW3060 Wi-Fi modules; the WIZ5500 Ethernet co-processor; the DP83848 RMII PHY board; 802.11n USB adapters for the Pi; and an XBee USB configuration adapter.
Wireless & comms · Wi-Fi & networking · 26 parts