Eval¶

• MAX31855; SPI
• Simple stm32f042 with 32KB flash; 16KB might be tough due to lot of periphery
• Send temperature every X seconds
• 10nF across T+/T-
• 100nF across VDD/GND
• No further power injection

Periphery¶

• SPI; 3
• I2C; 2
• Uart; 2
• SWD; 2
• 2 x LED; 2
• Rx/Tx LED; 2

-> 13

MCU¶

• STM32F042G6U6

Temperaturfuehler¶

https://www.testo.com/de-DE/wasserdichter-lebensmittelfuehler-aus-edelstahl-ip65/p/0602-2292#tab-downloads