Misc Projects - Revision history

WikiSysop: /* LPLDO */

2020-04-05T10:29:50Z

LPLDO

← Older revision		Revision as of 10:29, 5 April 2020
Line 13:		Line 13:

	Files: http://www.rev0proto.com/files/MiscProjects/lpldo_panels_v10.zip		Files: http://www.rev0proto.com/files/MiscProjects/lpldo_panels_v10.zip

			==4-cell Dummy==

			This is an attempt to make the cheapest possible 18650 "equipment" as legally defined for air shipment of batteries. It consists of a through-hole 4x 18650 holder, 3 PCBs, a through-hole tactile momentary switch, 1206 white LED, and 1206 62 ohm resistor. Total cost is as follows:

			{\| border="1" style="text-align:center;"
			\|'''Source'''
			\|'''Description'''
			\|'''Link'''
			\|'''Cost'''
			\|-

			\|JLCPCB
			\|10 (x15 per panel / 3 per device) PCBs, combined w/other order (50x)
			\|https://jlcpcb.com/
			\|$6.92
			\|-

			\|LCSC
			\|62 Ohm Resistor (combined w/other order) (100x)
			\|https://lcsc.com/en
			\|$0.24
			\|-

			\|Aliexpress
			\|1206 White LED (100x)
			\|https://www.aliexpress.com/item/32368682563.html
			\|$0.39
			\|-

			\|Aliexpress
			\|Tactile Switch (100x)
			\|https://www.aliexpress.com/item/32897610751.html
			\|$0.88
			\|-

			\|Aliexpress
			\|4-cell Holder (50x)
			\|https://www.aliexpress.com/item/32817873280.html
			\|$44.62
			\|-

			\|Total
			\|For 50x
			\|
			\|$53.05 ($1.06 per 4 cells, $0.27 per cell)
			\|-

			\|}

	==MS5534 Breakout==		==MS5534 Breakout==

WikiSysop: /* LPLDO */

2020-02-29T00:02:14Z

LPLDO

← Older revision		Revision as of 00:02, 29 February 2020
Line 3:		Line 3:
	==LPLDO==		==LPLDO==

	This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611. Long-term testing of this board is ongoing (1.5V variant), showing an estimated ~220 day standby life (to 3.2V battery voltage) with 90mAH Li-Po cell, or an average of 17uA current draw, within the expected max of 20.5uA (2.5uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC). Another 3V configured board measured at 20.59uA at 4.08V, which also meets expected max of 26uA (8uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC).		This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611. Long-term testing of this board is ongoing (1.5V variant), showing an estimated ~220 day standby life (to 3.2V battery voltage) with 90mAH Li-Po cell, or an average of 17uA current draw, within the expected max of 20.5uA (2.5uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC). Another 3V configured board measured at 20.59uA (4.66uA from protection IC) at 4.08V, which also meets expected max of 26uA (8uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC).

	<gallery widths=220 perrow=3>		<gallery widths=220 perrow=3>

WikiSysop: /* LPLDO */

2020-02-28T23:59:27Z

LPLDO

← Older revision		Revision as of 23:59, 28 February 2020
Line 3:		Line 3:
	==LPLDO==		==LPLDO==

	This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611. Long-term testing of this board is ongoing (1.5V variant), showing an estimated ~220 day standby life (to 3.2V battery voltage) with 90mAH Li-Po cell, or an average of 17uA current draw, within the expected max of 20.5uA (2.5uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC).		This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611. Long-term testing of this board is ongoing (1.5V variant), showing an estimated ~220 day standby life (to 3.2V battery voltage) with 90mAH Li-Po cell, or an average of 17uA current draw, within the expected max of 20.5uA (2.5uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC). Another 3V configured board measured at 20.59uA at 4.08V, which also meets expected max of 26uA (8uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC).

	<gallery widths=220 perrow=3>		<gallery widths=220 perrow=3>

WikiSysop: /* LPLDO */

2020-02-28T23:21:26Z

LPLDO

← Older revision		Revision as of 23:21, 28 February 2020
Line 9:		Line 9:
	File:Lpldo_sch.png\|Eagle board schematic for the LPLDO.		File:Lpldo_sch.png\|Eagle board schematic for the LPLDO.
	File:Lpldo-smt.png\|Panelized LPLDO boards with partial assembly.		File:Lpldo-smt.png\|Panelized LPLDO boards with partial assembly.
			File:Implementation_calipers.jpg\|LPLDO (1.5V version) in use with a 90mAH battery on a digital caliper.
	</gallery>		</gallery>

WikiSysop: /* LPLDO */

2020-02-28T22:33:26Z

LPLDO

← Older revision		Revision as of 22:33, 28 February 2020
Line 3:		Line 3:
	==LPLDO==		==LPLDO==

	This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611. Long-term testing of this board is ongoing (1.5V variant), showing an estimated ~220 day standby life (to 3.2V battery voltage) with 90mAH Li-Po cell, or an average of 17uA current draw, within the ~~spec~~ of		This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611. Long-term testing of this board is ongoing (1.5V variant), showing an estimated ~220 day standby life (to 3.2V battery voltage) with 90mAH Li-Po cell, or an average of 17uA current draw, within the expected max of 20.5uA (2.5uA from voltage divider + 10uA LDO + 2uA from charger + 6uA from protection IC).

	<gallery widths=220 perrow=3>		<gallery widths=220 perrow=3>

WikiSysop: /* LPLDO */

2020-02-28T22:27:52Z

LPLDO

← Older revision		Revision as of 22:27, 28 February 2020
Line 3:		Line 3:
	==LPLDO==		==LPLDO==

	This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611.		This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611. Long-term testing of this board is ongoing (1.5V variant), showing an estimated ~220 day standby life (to 3.2V battery voltage) with 90mAH Li-Po cell, or an average of 17uA current draw, within the spec of

	<gallery widths=220 perrow=3>		<gallery widths=220 perrow=3>
Line 11:		Line 11:
	</gallery>		</gallery>

	Files: ~~<s>~~http://www.rev0proto.com/files/MiscProjects/lpldo_panels_v10.zip~~</s>~~		Files: http://www.rev0proto.com/files/MiscProjects/lpldo_panels_v10.zip

	==MS5534 Breakout==		==MS5534 Breakout==

WikiSysop: /* MS5534 Breakout */

2020-02-28T22:24:52Z

MS5534 Breakout

← Older revision		Revision as of 22:24, 28 February 2020
Line 1:		Line 1:
	This is a list of breakout boards and smaller miscellaneous projects that have been created. All of the following designs are open-source, and all are welcome to modify and use these designs as they please.		This is a list of breakout boards and smaller miscellaneous projects that have been created. All of the following designs are open-source, and all are welcome to modify and use these designs as they please.

			==LPLDO==

			This is a low quiescent current LDO and Li-Ion single cell charger and protection PCB. It integrates an [https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY6345AAC_C98119.pdf SY6345] LDO, which supports input voltage range up to 40V, and has 10uA max, 7uA typical quiescent current, with the 2 populated variants of the board set for either 1.5V or 3V operation (to replace single LR44 or similar button cell, or CRxxxx type 3V button cells). The charger is an [https://datasheet.lcsc.com/szlcsc/1811141212_HX-hengjiaxing-HX4064A_C296273.pdf HX4064] single cell Li-Ion charger IC, with default charging current set for 83.3mA. The board was panelized to a 2x5 panel for a total of 50pcs in the order, and partially assembled with JLCPCB SMT service at a cost of $19.97 including $5.24 shipping. The unassembled components are the SY6345, HX4064, and 0.5 ohm 0805 resistor, with a cost of $0.212/board, for a total per-board cost of $0.611.

			<gallery widths=220 perrow=3>
			File:Lpldo_brd.png\|Eagle board layout for the LPLDO.
			File:Lpldo_sch.png\|Eagle board schematic for the LPLDO.
			File:Lpldo-smt.png\|Panelized LPLDO boards with partial assembly.
			</gallery>

			Files: <s>http://www.rev0proto.com/files/MiscProjects/lpldo_panels_v10.zip</s>

	==MS5534 Breakout==		==MS5534 Breakout==

WikiSysop: Created page with "This is a list of breakout boards and smaller miscellaneous projects that have been created. All of the following designs are open-source, and all are welcome to modify and us..."

2015-08-08T01:53:25Z

Created page with "This is a list of breakout boards and smaller miscellaneous projects that have been created. All of the following designs are open-source, and all are welcome to modify and us..."

New page

This is a list of breakout boards and smaller miscellaneous projects that have been created. All of the following designs are open-source, and all are welcome to modify and use these designs as they please.

==MS5534 Breakout==

This is a breakout board for the [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=223-1100-1-ND MS5534] digital pressure sensor. It includes the sensor itself, a 22uF Tantalum decoupling capacitor, and circuitry to generate a 32kHz reference clock for the chip's ADC and supporting circuitry.

<gallery widths=220 perrow=3>
File:Ms5534_eagle_layout.jpg|Eagle board layout for the MS5534 Breakout.
</gallery>

Files: <s>http://www.rev0proto.com/files/MiscProjects/ms5534_v10.zip</s>
Clock generation circuit is incorrect, new revision needs to be made.

==XBee Pro XSC Breakout==

This is a breakout board for the [http://www.digi.com/products/wireless-wired-embedded-solutions/zigbee-rf-modules/point-multipoint-rfmodules/xbee-pro-xsc.jsp#overview XBee Pro XSC] 900MHz radio transceiver. It includes a 300mA 3.3V LDO for powering the device from USB, and all XBee pins are broken out to standard 0.1" headers. The design is similar to the [http://www.parallax.com/Store/Accessories/CommunicationRF/tabid/161/ProductID/643/List/0/Default.aspx?SortField=ProductName,ProductName Parallax XBee] USB Adapter Board, though specialized for the XBee Pro XSC. Credit goes to Justin Jordan for the original schematic made in PCB Artist.

<gallery perrow=3 widths=180>
File:Xbee_breakout_eagle_layout.jpg|This is the Eagle layout for the XBee Pro XSC USB breakout board.
</gallery>

Files: http://www.rev0proto.com/files/MiscProjects/xbee_usb_breakout_v10.zip

==MCP2200 Breakout==

This is a breakout board for the [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MCP2200-I/SS-ND MCP2200] USB-to-UART bridge IC. It includes the chip, a mini-B USB connector, and four status LEDs. The IC is provided a 12MHz SMD crystal on the underside of the board, and all pins are accessible on the header.

<gallery perrow=3>
File:Mcp2200_bare-boards.jpg|A set of MCP2200 breakout boards pre-soldering.
File:Mcp2200_populated_bottom.jpg|The bottom side of a populated MCP2200 breakout board.
File:Mcp2200_populated_top.jpg|The top side of a powered up MCP2200 breakout board.
</gallery>

Files: http://www.rev0proto.com/files/MiscProjects/MCP2200_v11.zip

==ADC-10-4 Directional Coupler Breakout==

This is a breakout board for the [http://www.minicircuits.com/pdfs/ADC-10-4.pdf ADC-10-4] directional coupler from Mini-Circuits. It includes the device and SMA connectors for all four ports of the device, as well as pads for soldering on a 50 ohm terminator for the terminated port.

The device's internal construction is of the type detailed on this page: http://michaelgellis.tripod.com/direct.html
The schematic for the internal construction is shown below.

Testing was performed on the device using an Anritsu MS4622B vector network analyzer using the configurations shown below. The results are summarized in the two graphs below, which show that the device compares well to and exceeds the manufacturer specifications, with the exception of insertion loss, coupling at higher frequencies, and the CPL port return loss.

<gallery perrow=3>
File:Adc-10-4_back.jpg|Top side of the ADC-10-4 breakout.
File:Adc-10-4_front.jpg|Bottom side of the ADC-10-4 breakout.
File:Adc-10-4_internal.png|Schematic of the internal construction of the ADC-10-4.
File:ADC-10-4_Measurement_Setup.png|The measurement configurations for determining return loss, insertion loss, directivity, and coupling.
File:Coupling-Directivity-InsertionLoss.png|Coupling, directivity, and insertion loss of the ADC-10-4.
File:ReturnLoss.png|Return loss of all three ports of the ADC-10-4.
</gallery>

Board Files: http://www.rev0proto.com/files/MiscProjects/dircoupler_v10.zip

Test Data: http://www.rev0proto.com/files/MiscProjects/ADC-10-4.zip