Schematic - Revision history

Jca: /* Schematic */

2016-01-02T14:45:48Z

Schematic

← Older revision		Revision as of 16:45, 2 January 2016
Line 11:		Line 11:
	[[File:Schematic_2.png]]		[[File:Schematic_2.png]]
	Figure is PCB version 1B (never used). Current sensor output is level shifted (and inverted), to be in the 0 to 1.2V range for the Teensy A/D converter.		Figure is PCB version 1B (never used). Current sensor output is level shifted (and inverted), to be in the 0 to 1.2V range for the Teensy A/D converter.

			==Optional interfaces==

	There is further allowed for additional interfaces (PCB version 2B):		There is further allowed for additional interfaces (PCB version 2B):

Jca: /* Schematic */

2016-01-02T14:45:20Z

Schematic

← Older revision		Revision as of 16:45, 2 January 2016
Line 7:		Line 7:
	==Schematic==		==Schematic==

	This figure should be updated with version 2B.		This figure should be updated with version 2B.

	[[File:Schematic_2.png]]		[[File:Schematic_2.png]]
	Figure is PCB version 1B (never used).		Figure is PCB version 1B (never used). Current sensor output is level shifted (and inverted), to be in the 0 to 1.2V range for the Teensy A/D converter.

	There is further allowed for additional interfaces (PCB version 2B):		There is further allowed for additional interfaces (PCB version 2B):

Jca: /* Schematic */

2016-01-02T14:43:28Z

Schematic

← Older revision		Revision as of 16:43, 2 January 2016
Line 10:		Line 10:

	[[File:Schematic_2.png]]		[[File:Schematic_2.png]]
	Figure is version 1B ~~PCB~~ (never used).		Figure is PCB version 1B (never used).

	There is further allowed for additional interfaces (PCB version 2B):		There is further allowed for additional interfaces (PCB version 2B):

Jca at 14:43, 2 January 2016

2016-01-02T14:43:05Z

← Older revision		Revision as of 16:43, 2 January 2016
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	RegBot schematic revision 2A		RegBot schematic revision 1B

	==Teensy==		==Teensy==
Line 7:		Line 7:
	==Schematic==		==Schematic==

	~~Should~~ be updated with version 2B.		This figure should be updated with version 2B.

	[[File:Schematic_2.png]]		[[File:Schematic_2.png]]
	Figure is version 2A PCB (never used).		Figure is version 1B PCB (never used).

	There is further allowed for additional interfaces (version 2B):		There is further allowed for additional interfaces (PCB version 2B):

	* Line sensor - blinking LEDs at 1kHz and 8 sensors - connected to 8 A/D converters on the Teensy.		* Line sensor - blinking LEDs at 1kHz and 8 sensors - connected to 8 A/D converters on the Teensy.

Jca at 14:42, 2 January 2016

2016-01-02T14:42:02Z

← Older revision		Revision as of 16:42, 2 January 2016
Line 1:		Line 1:
	RegBot schematic revision ~~0.0~~		RegBot schematic revision 2A

	==Teensy==		==Teensy==
Line 12:		Line 12:
	Figure is version 2A PCB (never used).		Figure is version 2A PCB (never used).

	There is further allowed for additional interfaces:		There is further allowed for additional interfaces (version 2B):

	* Line sensor - blinking LEDs at 1kHz and 8 sensors - connected to 8 A/D converters on the Teensy.		* Line sensor - blinking LEDs at 1kHz and 8 sensors - connected to 8 A/D converters on the Teensy.

Jca at 14:41, 2 January 2016

2016-01-02T14:41:18Z

← Older revision		Revision as of 16:41, 2 January 2016
Line 1:		Line 1:
	RegBot schematic revision 0.0		RegBot schematic revision 0.0

			==Teensy==

	The teensy USB-5V connection to Vin is cut on the teensy-board, to allow 5V-PSU to supply in all cases.		The teensy USB-5V connection to Vin is cut on the teensy-board, to allow 5V-PSU to supply in all cases.

			==Schematic==

			Should be updated with version 2B.

	[[File:Schematic_2.png]]		[[File:Schematic_2.png]]
			Figure is version 2A PCB (never used).

	There is further allowed for additional interfaces:		There is further allowed for additional interfaces:
Line 13:		Line 19:
	* Serial interface (Teensy pin 0 (RX1) and 1 (TX1) (not supported by software yet).		* Serial interface (Teensy pin 0 (RX1) and 1 (TX1) (not supported by software yet).
	* Addition of power control IC, but this is pt. bypassed by a jumper.		* Addition of power control IC, but this is pt. bypassed by a jumper.

			==Future improvements==

	Future improvements should replace the Pololu 5V switch mode supply by a 7805 linear controller, as the idle power consumption by the converter is higher than the Teensy 5V current. Yhis would allow the processor to go to sleep mode if battery volatge is getting low (this is implemented in software).		Future improvements should replace the Pololu 5V switch mode supply by a 7805 linear controller, as the idle power consumption by the converter is higher than the Teensy 5V current. Yhis would allow the processor to go to sleep mode if battery volatge is getting low (this is implemented in software).

Jca at 14:39, 2 January 2016

2016-01-02T14:39:05Z

← Older revision		Revision as of 16:39, 2 January 2016
Line 11:		Line 11:
	* IR distance sensors (Sharp 2Y0A21F) two, that is connected to 5V and A0 (IR1) and A1 (IR2) on the processor.		* IR distance sensors (Sharp 2Y0A21F) two, that is connected to 5V and A0 (IR1) and A1 (IR2) on the processor.
	* Interface to Nordic Radio board with SPI interface (not in software yet)		* Interface to Nordic Radio board with SPI interface (not in software yet)
	* Serial interface (Teensy pin 0 (RX1) and 1 (TX1) (not supported by software yet.		* Serial interface (Teensy pin 0 (RX1) and 1 (TX1) (not supported by software yet).
			* Addition of power control IC, but this is pt. bypassed by a jumper.

			Future improvements should replace the Pololu 5V switch mode supply by a 7805 linear controller, as the idle power consumption by the converter is higher than the Teensy 5V current. Yhis would allow the processor to go to sleep mode if battery volatge is getting low (this is implemented in software).

			Some plugs (IR-sensor and Nordic radio) should be relocated, as they conflict with Teensy USB cable.

			A battery ON/OFF switch should be mounted directly on the PCB.

Jca at 14:32, 2 January 2016

2016-01-02T14:32:57Z

← Older revision		Revision as of 16:32, 2 January 2016
Line 6:		Line 6:
	[[File:Schematic_2.png]]		[[File:Schematic_2.png]]

	Line sensor is not ~~implemented on all robots~~.		There is further allowed for additional interfaces:

			* Line sensor - blinking LEDs at 1kHz and 8 sensors - connected to 8 A/D converters on the Teensy.
			* IR distance sensors (Sharp 2Y0A21F) two, that is connected to 5V and A0 (IR1) and A1 (IR2) on the processor.
			* Interface to Nordic Radio board with SPI interface (not in software yet)
			* Serial interface (Teensy pin 0 (RX1) and 1 (TX1) (not supported by software yet.

Jca at 20:51, 18 September 2015

2015-09-18T20:51:30Z

← Older revision		Revision as of 22:51, 18 September 2015
Line 1:		Line 1:
	RegBot schematic revision 0.0		RegBot schematic revision 0.0

	~~NB! the~~ teensy USB-5V connection to Vin is cut, to allow 5V-PSU to supply in all cases.		The teensy USB-5V connection to Vin is cut on the teensy-board, to allow 5V-PSU to supply in all cases.


	[[File:Schematic_2.png]]		[[File:Schematic_2.png]]

			Line sensor is not implemented on all robots.

Jca at 20:46, 18 September 2015

2015-09-18T20:46:12Z

← Older revision		Revision as of 22:46, 18 September 2015
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	[[File:~~schematic~~.png]]		[[File:Schematic_2.png]]