iWave Systems iW-RainboW-G54S is a credit card-sized SBC fitted with an OSM Size-S (30x30mm) system-on-module based on STM32MP133 or STM32MP135 Cortex-A7 SoC with up to 1GB RAM, and up to 128GB flash.
Interfaces include a Gigabit Ethernet port, a USB Type-A port, an 18-bit RGB LCD display interface, and three 100-pin high-density connectors for additional I/Os. The iW-RainboW-G54S SBC is designed for industrial applications with a temperature range of -40 to +85°C. While it’s fitted with an OSM Size-S module, we’ll also notice the carrier board has a footprint for OSM Size-M (45x30mm) and OSM Size-L (45x45mm) modules indicating it will be used with other OSM modules in the future.
iWave Systems iW-RainboW-G54S specifications:
- System-on-Module – iW-RainboW-G54M
- SoC (one or the other)
- STMicro STM32MP133 single-core Cortex-A7 with or without Secure boot + Cryptography; for headless applications
- STMicro STM32MP135 single-core Cortex-A7 with or without Secure boot + Cryptography; supports LCD-TFT parallel display interface and a 16-bit parallel camera
- Memory – 512MB DDR3L (1GB option)
- Storage
- 4GB eMMC Flash (expandable up to 128GB)
- 16Kbit EEPROM
- Networking – On-module Gigabit Ethernet PHY
- Power Management – STMicro STPMIC1EPQR PMIC
- Dimensions – 30 x 30mm (OSM Size-S)
- SoC (one or the other)
- Storage – MicroSD Slot
- Display Interface – 18-bit RGB display connector with I2C touch on the board side (only for STM32MP135 model)
- Camera Interface – MIPI CSI connector (not used here)
- Networking – Gigabit Ethernet RJ45 jack
- USB
- 1x Micro USB 2.0 OTG port
- USB header
- Expansion – 3x 100-pin connectors
- 4x UART (x2 with flow control)
- 2x RGMII (Ethernet)
- 2x CAN Bus
- 2x SPI, 2x I2C
- 2x ADC
- 1x I2S
- 7x GPIOs
- JTAG
- Debugging – Debug UART Header; JTAG via 100-pin connector
- Misc
- RTC Battery Header
- FAN Header
- Power Supply – 12V/2A via DC jack
- Dimensions – 85 x 56mm (credit card form factor)
- Temperature Range – -40°C to +85°C (Industrial)
- Compliance – REACH & RoHS3 compliant
iWave Systems says the STM32MP133/STM32MP135 OSM SBC supports Linux 6.1.28 (or higher). The company provides some public documentation accessible immediately after leaving your email (brochure, datasheet, STEP file), but the Linux documentation and SBC can only be accessed after talking to sales. There’s also a short getting started guide available without any registration showing how to boot a Yocto-build ST OpenSTLinux image on the board.
Samples of the iW-RainboW-G54S with STM32MP135 SoC and 512MB RAM can be purchased on Digikey for $268.42. At this price, it will be mainly (only?) interesting as an evaluation platform for the OSM Size S module. Additional information can be found on the product page.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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