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- SKU: 16884
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OpenH743I-C is an STM32 development board designed for the STM32H743IIT6 microcontroller, consists of the mother board and the MCU core board CoreH743I.
The OpenH743I-C supports further expansion with various optional accessory boards for specific application. The modular and open design makes it the ideal for starting application development with STM32 series microcontrollers.
Resources
Onboard Peripherals

- MCU core board connector: for easily connecting the CoreH743I
- Arduino interface: for connecting Arduino shields
- DCMI interface: for connecting camera
- 8-bit FMC interface: easily connects to peripherals such as NandFlash
- ULPI interface: for connecting high-speed USB peripheral (the STM32H743I integrates USB HS controller without any PHY device)
- LCD interface 1: for connecting 10.1inch LCD, 7inch LCD, 4.3inch LCD
- LCD interface 2: for connecting 4.3inch LCD
- SAI1 interface: for connecting audio modules
- ICSP interface: Arduino ICSP
- SPI interfaces:
- easily connects to SPI peripherals such as DataFlash (AT45DBxx, W25QXX), SD card, MP3 module, etc.
- easily connects to AD/DA modules (SPI1 features AD/DA alternative function)
- Ethernet interface: for connecting Ethernet modules
- I2S / I2C interface: easily connects to I2S peripherals such as audio module, etc.
- USART1 connector: USB to UASRT via the onboard convertor CP2102
- QUADSPI interface: 4-wires SPI interface (the H7 series latest peripheral interface), for connecting serial Flash modules like W25QXX Board
- SDMMC interface: for connecting Micro SD module, features much faster access speed rather than SPI
- USART3 interface: easily connects to RS232, RS485, USB TO 232, etc.
- CAN2 interface: for connecting CAN modules
- CAN1 interface: for connecting CAN modules
- I2C1/I2C4 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), 10 DOF IMU Sensor, etc.
- MCU pins connector: all the MCU I/O ports are accessible on expansion connectors for further expansion
- 5V DC jack
- 5V/3.3V power input/output: usually used as power output, also common-grounding with other user board
- Power supply switch: powered from 5VDC OR USB connection of the USART1
- CP2102: USB to UART convertor
- LEDs: convenient for indicating I/O status and/or program running state
- Joystick: five positions
- WAKE UP button: used as regular button, and/or wake up the STM32 MCU from sleep
- Reset button
- USART1 jumper
- LED jumper
- short the jumper to connect to default I/Os used in example code
- open the jumper to connect to custom I/Os via jumper wires
- KEY jumper
- short the jumper to connect to default I/Os used in example code
- open the jumper to connect to custom I/Os via jumper wires
- Arduino jumper
- short the upper pins, A4, A5 is used as AD function
- short the lower pins, A4, A5 is used as I2C function
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)




