Heat sensor - for air temp

[kgreene1983]

Is it possible to add a heat sensor so that you can tell the outdoor temperature (well the temp inside the egg).

[visualapproach]

Haven't tested but should be doable by connecting to d0 or d8

[visualapproach]

And adding some code to handle it ofc. I won't add that to the project but I can support if you need help. One thing to bear in mind:

Label	GPIO	Input	Output	Notes
D0	GPIO16	no interrupt	no PWM or I2C support	HIGH at boot used to wake up from deep sleep
D1	GPIO5	OK	OK	often used as SCL (I2C)
D2	GPIO4	OK	OK	often used as SDA (I2C)
D3	GPIO0	pulled up	OK	connected to FLASH button, boot fails if pulled LOW
D4	GPIO2	pulled up	OK	HIGH at bootconnected to on-board LED, boot fails if pulled LOW
D5	GPIO14	OK	OK	SPI (SCLK)
D6	GPIO12	OK	OK	SPI (MISO)
D7	GPIO13	OK	OK	SPI (MOSI)
D8	GPIO15	pulled to GND	OK	SPI (CS)Boot fails if pulled HIGH
RX	GPIO3	OK	RX pin	HIGH at boot
TX	GPIO1	TX pin	OK	HIGH at bootdebug output at boot, boot fails if pulled LOW
A0	ADC0	Analog Input	X

[kgreene1983]

Can I use a DALLAS DS18B20 18B20 TO-92 IC CHIP Thermometer Temperature Sensor?

It would be cool to see the outside temperature.

[visualapproach]

I tried @ pins D0, D8 and A0 with no luck. The only way I can think of is to sacrifice the audio pin. Connect the audio pins between CIO and DSP - you will have the standard sound. And use pin D6 (disconnected from the DSP/CIO) for the Dallas chip. Then it may work. The library for DS18B20 turns off interrupts periodically which may interfere with the layzspa library. You can use 3.3V directly to this chip.