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STD t-beacon2
t-beacon2
License
BSD License
License: BSD License- 0
Update time：
2024-10-23 19:13:21
Creation time：
2024-09-27 14:10:01
Description
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
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | |
|---|---|---|---|---|---|
| 1 | 22uF | C23,C33 | CASE-A_3216 | 2 | C129272 |
| 2 | 1.0x2.0mm Pad Oval | TP03,TP02 | 1.0X2.0MM-PAD-OVAL | 2 | |
| 3 | IRLML2402 | VT23,VT22,VT31,VT35,VT34,VT21,VT24,VT25,VT32,VT33 | SOT-23_L2.9-W1.3-P1.90-LS2.4-BR | 10 | C82055 |
| 4 | 10 | R_25,R_35 | R0805 | 2 | |
| 5 | LED-0603_R | LED_B2,LED_R2,LED_B3,LED_R3 | LED0603_RED | 4 | C72044 |
| 6 | 10k | R_22,R_34,R23,R32,R_32,R33,R22,R_24 | R0603 | 8 | |
| 7 | 220nH | L_3,L_2 | L0805 | 2 | C280465 |
| 8 | MCP73831T-2ATI/OT | CHRGE3,CHRGE2 | SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR | 2 | C14879 |
| 9 | 0.1u | C31,C35,C21,C25 | C1206 | 4 | |
| 10 | TJ-S2835Y05W-YKF6 | LEDW2,LEDW3 | LED-SMD_TJ-S2835Y05W-YKF6 | 2 | C9900016403 |
| 11 | HX 1.25-6P WT | SWD2,SWD3 | CONN-SMD_6P-P1.25_HX1.25-6PWT | 2 | C5142073 |
| 12 | 3000Hz | BUZZ2,BUZZ3 | BUZ-SMD_L9.6-W9.6-LS10.0-R | 2 | C391032 |
| 13 | TPS7333QD | LDO3,LDO2 | SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL | 2 | C2878193 |
| 14 | E77-400M22S | E77_3,E77_2 | COMM-SMD_L20.0-W14.0_E77-400M22S | 2 | C5124421 |
| 15 | 1.25MM-6P ZZ-MS | GPS3,GPS2 | CONN-TH_6P-P1.25_HX-1.25MM-6P-ZZ-MS | 2 | C5368709 |
| 16 | HVAC navi 8 pin | DISPLAY2,DISPLAY3 | SMD_HF-P1.25-8P | 2 | C267485 |
| 17 | 3*6*3.5 Side press High temperature | SW33,SW23 | SW-SMD_3-6-3.5-C37327 | 2 | C37327 |
| 18 | 3*6*3.5 Side press | SW32,SW31,SW22,SW21 | SW-SMD_3-6-3.5-C37327 | 4 | C37327 |
| 19 | 100k | R_33,R24,R36,R35,R39,R38,R_31,R_23,R_21,R29,R28,R26,R25,R34 | R0603 | 14 | |
| 20 | SW-SMD-3*4*2H | RESET1,RESET3 | SW-SMD_L4.0-W3.0-LS5.0 | 2 | C9900006488 |
| 21 | 47uF | C32,C22 | CAP-SMD_L3.5-W2.8-R-RD | 2 | C136751 |
| 22 | 1uF | C34,C24 | C1206 | 2 | |
| 23 | LED-0805_B | LEDCH2,LEDCH3 | LED0805_BLUE | 2 | C108412 |
| 24 | 3k | R31,R21 | R0603 | 2 | |
| 25 | BAT54CG-AE3-R | VD31,VD21 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | 2 | C487751 |
| 26 | 250k | R27,R37 | R0603 | 2 |
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