KAmodRPiRTC - Revision history

Grzegorzbecker at 19:02, 1 November 2024

2024-11-01T19:02:28Z

← Older revision		Revision as of 19:02, 1 November 2024
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	__jzpdf__		__jzpdf__
	===== Description =====		====== Description ======
	KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clock (M41T00S from STMicroelectronics offer) integrated with the calendar and automatic battery maintaining.		KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clock (M41T00S from STMicroelectronics offer) integrated with the calendar and automatic battery maintaining.

Anna Kubacka at 11:48, 23 September 2020

2020-09-23T11:48:14Z

← Older revision		Revision as of 11:48, 23 September 2020
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	===== Description =====		===== Description =====
	KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clock (M41T00S from STMicroelectronics offer) integrated with the calendar and automatic battery maintaining.		KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clock (M41T00S from STMicroelectronics offer) integrated with the calendar and automatic battery maintaining.

	<center>		<center>
	[[File:fota_na_i_strone.JPG\|none\|400px\|thumb\|center]]		[[File:fota_na_i_strone.JPG\|none\|400px\|thumb\|center]]

Wlodzimierzhepner: /* Embedded RTC */

2018-08-29T13:05:09Z

Embedded RTC

← Older revision		Revision as of 13:05, 29 August 2018
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	===== Embedded RTC =====		===== Embedded RTC =====
	IN expander are used a single-chip RTC M41T00S from STMicroelectronics. The system is a complete calendar, it is also equipped with a monitor of the supply voltage level and an automatic switch connecting the battery supply voltage in the event of a failure of the main supply voltage. The M41T00S chip communicates with the microprocessor of the RPi minicomputer (RPi+) using the I2C interface (channel 0).		In the expander are used a single-chip RTC M41T00S from STMicroelectronics. The system is a complete calendar, it is also equipped with a monitor of the supply voltage level and an automatic switch connecting the battery supply voltage in the event of a failure of the main supply voltage. The M41T00S chip communicates with the microprocessor of the RPi minicomputer (RPi+) using the I2C interface (channel 0).

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	===== Installation of expander on RaspberryPi minicomputer =====		===== Installation of expander on RaspberryPi minicomputer =====

Anna Kubacka: Created page with "jzpdf ===== Description ===== KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clo..."

2018-08-27T12:22:36Z

Created page with "__jzpdf__ ===== Description ===== KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clo..."

New page

__jzpdf__
===== Description =====
KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clock (M41T00S from STMicroelectronics offer) integrated with the calendar and automatic battery maintaining.

<center>
[[File:fota_na_i_strone.JPG|none|400px|thumb|center]]
</center>

===== Basic features and parameters =====
* compatibility with minicomputer RaspberryPi and RaspberryPi+
* Communication with microporcessor systems via I2C interface (channel 0)
* Embedded one-chip RTC from STMicroelectronics (M41T00S)
* Extended I/O connector of RPi minicomputer
* Embedded battery to maintaining of RTC work
* Power supply voltage range 2.7...5.5VDC
* Power consumption <400 µA

<center>
[[File:rpi_B_plus.jpg|none|400px|thumb|center]]
</center>

The expander is adapted to cooperate also with RaspberryPi+ minicomputers

===== Standard equipment =====

<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|Code
! style="text-align: center;"|Description
|-
| style="text-align: center;"|<b>KAmodRPiRTCr</b>
| style="text-align: left;”|
* Assembled and launched board with battery 3V (CR2032)
|}
</center>

===== Schematic =====

<center>
[[File:KAmodRPiRTC_schemat.png|none|400px|thumb|center]]
</center>

===== View of board =====

<center>
[[File:pcb.jpg|none|200px|thumb|center]]
</center>

===== Embedded RTC =====
IN expander are used a single-chip RTC M41T00S from STMicroelectronics. The system is a complete calendar, it is also equipped with a monitor of the supply voltage level and an automatic switch connecting the battery supply voltage in the event of a failure of the main supply voltage. The M41T00S chip communicates with the microprocessor of the RPi minicomputer (RPi+) using the I2C interface (channel 0).

<center>
[[File:rtc.jpg|none|500px|thumb|center]]
</center>

The lines used for RTC communication with the microprocessor are shown in the table below.

<center>
{| class="wikitable" style="width: 1000px;"
|-
! style="text-align: center;"|Line
! style="text-align: center;”|Function
! style="text-align: center;”|Number of GPIO pin
! style="text-align: center;”|Comments
|-
| style="text-align: center;"|GPIO2
| style="text-align: center;”|SDA
| style="text-align: center;”|3
| style="text-align: center;"|Lines pulled up to +3,3 V with 4,7kΩ resistors
|-
| style="text-align: center;"|GPIO3
| style="text-align: center;”|SCL
| style="text-align: center;”|5
| style="text-align: center;"|Lines pulled up to +3,3 V with 4,7kΩ resistors
|}
</center>

===== Installation of expander on RaspberryPi minicomputer =====

<center>
[[File:kamodRTC_RPi.jpg|none|400px|thumb|center]]
</center>

===== Installation of expander on RaspberryPi+ minicomputer =====

<center>
[[File:kamodRTC_RPi_B_plus.jpg|none|400px|thumb|center]]
</center>

KAmodRPiRTC - Revision history

Grzegorzbecker at 19:02, 1 November 2024

Anna Kubacka at 11:48, 23 September 2020

Wlodzimierzhepner: /* Embedded RTC */

Anna Kubacka: Created page with "__jzpdf__ ===== Description ===== KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clo..."

Anna Kubacka: Created page with "jzpdf ===== Description ===== KAmodRPiRTC is a functional expander for RaspberryPi and Raspberry Pi+ minicomputers, that make possible to equip them with RTC real time clo..."