t-beacon2

Ongoing

STD t-beacon2

STM32

GSM/GPRS

Communication_Module

License: BSD License

Mode:

Editors' pick

Cloned from new order

Update time： 2024-10-25 17:54:30

Creation time： 2024-09-27 14:10:01

Description

LoRa-E77 based local relative GNSS navigation for group of 3, 4 or 5 members or/and up to 4 tiny beacons.

Resonable settings are: spreading factor 11, coding rate 4/6, bandwidth 125 khz.

Spreading factor 12 (with coding rate 4/7) restricted to 1 communication module and 2 tiny beacons.

Half sized pcb of previously published tiny beacon and slightly modified communication module.

Design Drawing

schematic diagram

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module1
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beacon2
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beacon3
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PCB

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PCB_module
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PCB_beacon
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	PAD 3X2 MM	+,-	PAD 3X2 MM	2
2	JST-PH_2-PIN_HEADER	BAT	JST_B2B-PH_HEADER	1
3	3000Hz	BUZZ2,BUZZ3	BUZ-SMD_L9.6-W9.6-LS10.0-R	2	C391032
4	0.1u	C1,C4,C5,C6,C21,C25,C31,C35	C1206	8
5	47uF	C2,C3,C22,C32	CAP-SMD_L3.5-W2.8-R-RD	4	C136751
6	1uF	C8,C24,C34	C1206	3
7	22uF	C23,C33	CASE-A_3216	2	C129272
8	MCP73831T-2ATI/OT	CHARGE,CHRGE2,CHRGE3	SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR	3	C14879
9	BAT54CG-AE3-R	D1,VD21,VD31	SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR	3	C487751
10	HVAC navi 8 pin	DISPLAY2,DISPLAY3	SMD_HF-P1.25-8P	2	C267485
11	E77-400M22S	E77,E77_2,E77_3	COMM-SMD_L20.0-W14.0_E77-400M22S	3	C5124421
12	Button-6x6x8-Right-Angle	ESC1,OK1,PWR1	SW-TH_BBJ-C71833	3	C71833
13	G	G,G1	PADPAD	2
14	1.25MM-6P ZZ-MS	GPS1,GPS2,GPS3	CONN-TH_6P-P1.25_HX-1.25MM-6P-ZZ-MS	3	C5368709
15	220nH	L1,L_2,L_3	L0805	3	C280465
16	TPS7333QD	LDO1,LDO2,LDO3	SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL	3	C2878193
17	LED-0805_B	LEDB,LEDCH2,LEDCH3,LED_CH1	LED0805_BLUE	4	C108412
18	LED-0805_G	LEDG,LEDR	LED0805_GREEN	2	C84260
19	TJ-S2835Y05W-YKF6	LEDW2,LEDW3,LED_W	LED-SMD_TJ-S2835Y05W-YKF6	3	C9900016403
20	LED-0603_R	LED_B2,LED_B3,LED_R2,LED_R3	LED0603_RED	4	C72044
21	IRLML2402	Q1,Q3,Q5,Q6,VT21,VT22,VT23,VT24,VT25,VT31,VT32,VT33,VT34,VT35	SOT-23_L2.9-W1.3-P1.90-LS2.4-BR	14	C82055
22	IRLML6402	Q2	SOT-23_NODOC	1
23	IRLML6302	Q4	SOT-23_NODOC	1
24	2k	R1	R0603	1
25	10k	R2,R8,R12,R22,R23,R32,R33,R_22,R_24,R_32,R_34	R0603	11
26	100k	R3,R5,R6,R10,R11,R14,R15,R17,R24,R25,R26,R28,R29,R34,R35,R36,R38,R39,R41,R_21,R_23,R_31,R_33	R0603	23
27	250k	R4,R27,R37	R0603	3
28	5k	R7,R21,R31	R0603	3
29	3k	R9	R0603	1
30	22	R13,R30	R0805	2
31	10	R16,R_25,R_35	R0805	3
32	1k	R18,R19,R20,R40	R0603	4
33	SW-SMD-342H	RESET,RESET1,RESET3	SW-SMD_L4.0-W3.0-LS5.0	3	C9900006488
34	CON-SMA-EDGE-S-ND	SMA	CON-SMA-EDGE-S-ND	1	CON-SMA-EDGE-S-ND
35	ST7735 1.8	ST1,ST7735	ST7735	2
36	363.5 Side press	SW21,SW22,SW31,SW32	SW-SMD_3-6-3.5-C37327	4	C37327
37	363.5 Side press High temperature	SW23,SW33	SW-SMD_3-6-3.5-C37327	2	C37327
38	HX 1.25-6P WT	SWD1,SWD2,SWD3	CONN-SMD_6P-P1.25_HX1.25-6PWT	3	C5142073
39	1.0x2.0mm Pad Oval	TP02,TP03	1.0X2.0MM-PAD-OVAL	2
40	TYPE-C-6P-DIP2X2	USB1	TYPE-C-SMD_TYPE-C-6P	1	C9900017627