CubeCell

From Eric

Revision as of 15:05, 13 December 2020 (view source) Ejenn (Talk | contribs) m (Created page with "== The CubeCell module == [cubecell.jpg] == Problem uploading sketches == In case you cannot upload the sketch to the cude cell (timeout when connecting to the bootloader), a so...") ← Older edit		Revision as of 08:55, 10 April 2021 (view source) Ejenn (Talk | contribs) m Newer edit →
Line 7:		Line 7:
	* releasing the reset button		* releasing the reset button
	* releasing the user button		* releasing the user button
		+	== Measuring battery level ==
		+	The battery voltage can be read using the getBatteryVoltage() API.
		+	This is achieved by connecting the ADC to vbat via a 1/2 divider:
		+
		+
		+	[[File:cuvecellvbatmeasure.jpg|400px|thumb|none]]
		+
		+
		+	In order to prevent the battery to dry out via the divider, connection to vbat is controlled by GPIO7 via a dual transistor (AO7801).
		+
		+	[[File:aO7801.jpg|400px|thumb|none]]

---

Revision as of 08:55, 10 April 2021

The CubeCell module

[cubecell.jpg]

Problem uploading sketches

In case you cannot upload the sketch to the cude cell (timeout when connecting to the bootloader), a solution consists to set the CubeCell in bootloader mode manually by:

• pressing the user button
• pressing the reset button
• releasing the reset button
• releasing the user button

Measuring battery level

The battery voltage can be read using the getBatteryVoltage() API. This is achieved by connecting the ADC to vbat via a 1/2 divider:

In order to prevent the battery to dry out via the divider, connection to vbat is controlled by GPIO7 via a dual transistor (AO7801).