OnStep STM32 Blue Pill copy

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STD OnStep STM32 Blue Pill copy

License: GPL 3.0

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Cloned from OnStep STM32 Blue Pill

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Update time： 2021-02-23 13:31:21

Creation time： 2019-03-02 10:15:29

Description

OnStep Telescope Controller based on the STM32 ARM Cortex M3 microcontroller 'Blue Pill' board. Designed by Dave Schwartz and Khalid Baheyeldin. More info on OnStep here: https://groups.io/g/onstep/wiki/Home Before ordering this PCB, or using the schematic, you must read this page carefully, and in its entirity. STM32 OnStep here: https://groups.io/g/onstep/wiki/STM32F103-Blue-Pill

Design Drawing

schematic diagram

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Schematic copy
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PCB

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STM32 PCB copy
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity	Mounted
1	DS3231 RTC EEPROM	RTC	DS3231	1	Yes
2	CP2102 microUSB	USB	USB_UART_CP2102	1	Yes
3	470 Ohm	R1,R2	R805	2	Yes
4	2A5G3HD01	TRK-LED	LED-257	1	Yes	C50000
5	LM2596S_MODULE	PWR	LM2596S_MODULE_SMD	1	Yes
6	Speaker	BUZZER	BUZZER-CMT1102	1	Yes
7	Stepper Driver	AX4DRV,AX2DRV,AX1DRV	DRV8825 STEPPER MOTOR DRIVER CARRIER	3	Yes
8	M04	AX1HDR,AX2HDR,AX4HDR	MOLEX-1X4	3	Yes
9	Molex 1x6	ST4PRT	MOLEX-1X6	1	Yes
10	WEMOS	WIFI	WEMOS MINI D1 1MM HOLES	1	Yes
11	Bused Resistor	ST4PULLUP	RESSIP-5	1	Yes
12	STM32F103C8T6 Blue Pill	STM32	STM32F103C8T6-BLUEPILL	1	Yes
13	JUMPER2	J4A,J4B,J4C,J4D,J3	JUMPER2	5	Yes
14	Molex 1X5	MULTI	MOLEX 1X5 PACKAGE	1	Yes
15	100UF/50V	C1,C2,C3	CAP 8MM	3	Yes
16	JUMPER3	J2,J1	JUMPER3	2	Yes
17	5x20 BLX-Atype Fuse holder XC-7	F1	5X20-BLX-A	1	Yes	C3131