AN4395 Application note Autonomous wireless multi-sensor node powered by PV cells and based on SPV1050 (SPIDEr™) Domenico Ragonese Introduction The STEVAL-IDS002V1 is a complete and fully configurable reference design of a wireless sensor node powered by the energy harvested from a photovoltaic module soldered on the top. It is composed by a fully integrated transmitter board which contains a temperature sensor, an air pressure sensor and a 3-axis accelerometer MEMS sensor powered by the SPV1050 device. Moreover a microcontroller and an RF Sub-Giga transmitter, all by ST, are mounted on the board. The system has a receiver companion powered through a USB cable by the PC. For further details on the SPV1050 device, please refer to the related datasheet. The reference design kit is supported by a software user-friendly GUI able to show PV module and battery electrical characteristics, conversion efficiency, MPPT accuracy and sensors readings. The transmitter module is based on an STM32L151 low power microcontroller which controls sensors configuration and data communication. A digital temperature sensor (STTS751), a pressure sensor (LPS331AP) and a 3-axis accelerometer (LIS3DH) are connected to the microcontroller through the I2C bus. Figure 1. STEVAL-IDS002V1 reference design kit (SPIDEr™) May 2014 DocID025513 Rev 1 1/24 www.st.com Contents AN4395 Contents 1 Transmitter board schematics and bill of material . . . . . . . . . . . . . . . . 3 2 Transmitter board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 Receiver board schematics and bill of material . . . . . . . . . . . . . . . . . . 12 4 Receiver board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5 STEVAL-IDS002V1 reference kit description (SPIDEr™) . . . . . . . . . . . 17 5.1 5.2 6 2/24 TX board connectors and jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.1.1 Sensor/transmitting module connectors and jumpers . . . . . . . . . . . . . . 19 5.1.2 Harvesting module connectors and jumpers . . . . . . . . . . . . . . . . . . . . . 20 RX board connectors and jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 DocID025513 Rev 1 DocID025513 Rev 1 5 5 67* 9&& 6 6 ' ' 6(/ 6(/ 6(/ 6 6(/ 6 *1' 6*1' 9'' 9&&B5) 6(/B63,5,7 6: 0 0+] & S) ;7$/ 9'' 6'Q 6036 6036 7; 5(;7 5;1 5;3 9%$7 ;, 1 ;287 ; 6(/B63,5,7 *3,2B 6'2 6 6', 6&/. 6& &6Q *1' & Q) & S) & S) & Q) 9&&B5) / 8 63,5,7 X+ 6705 627/ ,1 287 1& *1' )% 8 & S) / Q+ & 10 & S) & S) &WXQ 1& Q+ / S) & Q+ Q+ / Q+ / & S) & X) 63,5,7B6'1 & 10 / / Q+ 63,5,7B6'1 5 . / Q+ 5 . 5 . 9287 & S) 5 QF / / & Q) 986%B287 S) & 1& & S) . 5 & & S) 9 9287 ' - 7(6732,17 7(6732,17 73 73 7(6732,17 9'' 60$ (1'/$81&+ $0 9'' 73 67* 7(6732,17 73 9&& 6 6 ' ' 6(/ 6(/ 6(/ 6 6(/ 6 *1' 6*1' 6: -803(5 - 9B5) 7(6732,17 73 S) & & X) 9 700%$7 700%$7 700%$7 5 . ' ' 9B5) *3,2 63,B0,62 63,B026, 63,B6&/. 63,B166 *3,2 *3,2 *3,2 *3,2 *3,2 *3,2 & X) 9&&B5) & X) 9 9%$7 $ 95(* 9 ( *3,2B , B *3,2B * , B *3,2B * B *3,2 63,B0,62 63,B026, 63,B6&/. 63,B166 ' 700%$7 9 1 & S) 9 AN4395 Transmitter board schematics and bill of material Transmitter board schematics and bill of material Figure 2. Board schematic - transmitter/receiver 3/24 24 4/24 &1 +HDGHU -3 DocID025513 Rev 1 6(/B0(0 / $QWHQQD X+ 67* 9B5) 5 5 6(/B0(0 &WXQ 1& 6'$ ,17 6 9&& 6 6(/ ' 6(/ 6 *1' 6 ' 6: 9 9GG,2 1& 1& 6&/ 6&/ *1' * &6 6$ 6'$ 6(/B3 6&/ %$0 5 5 6(/B0(0 6&/ 9'' 9'' :,3 6&/ 6'$ * *1' *1' ,17 ,1 5HV ,17 ,1 67* ,17 6 9&& 6 6(/ ' 6 *1' 6 ' 6: 6'$ 67* 5 5 9&& 6 6 ' 6 ' 6(/ 6(/ 6(/ 6 6(/ 6 6 *1' 6*1' 6: 5)B:,3 5 5 6(/B3 9'' 5)B:,3 5 . 9''B0(0 *1' *1' ,17 *1' ,17 8 /36$3< 0/5(5 76623 & Q) 8 9B5) 9RXW $& $ $& $ *1' *1' *1' 9GG 5HV *1' 5 5 9'' 6'$ 6&/ 6(/B3 ,17 ,17 *1' *1' 6'$ 6&/ 6(/B3 ,17 ,17 $0 5 5 9'' 9''B0(0 6(/B0(0 Transmitter board schematics and bill of material AN4395 Figure 3. Board schematic - antenna DocID025513 Rev 1 5 5 6(/B$ 6&/ 67* 5 5 6'$ 9GG 9GG,2 1& 1& 6&/ * *1' 6(/B0(0 6'$ 6&/ 6(/B3 ,17 ,17 9B021,725,1* *1' 6'$ 6&/ 6(/B3 ,17 ,17 *1' 67* 5 5 5 6(/B0(0 6&/ 6'$ 5 . 63,B166 63,B6&/. 63,B0,62 63,B026, 63,5,7B6'1 6(/B63,5,7 *1' ,17B$ *1' ,17B$ 8 /,6'+ 5 5 5 ' 5 ' . 6'$ 9B021,725,1* $ $'& *1' ,17 5 5(6 , 17 ,,17 6 9&& 6 6 6(/ ' 6 *1' 6 ' 6: ,17 6 9&& 6 6 ' 6(/ 6 *1' 6 ' 6: 6(/B$ 5 5 6(/B7 6&/ &6 6$ 6'$ (9(17 9'' & Q) 9'' X86% 9 6+ 9 9'' $'& $'& 9'' & X) 67* 9&& 6 6 ' ' 6 6(/ 6(/ 6 6* 6 *1' 6: 6776 $GGU7KHUP 6 $ 6'$ *1' (9(17 9 9GG 6&/ 675,3 9&& ' ' ' ,,' * *1' 6+,(/' &1 9 '()$8/7 12702817(' 5 5 6(/B7 9'' 9'' *1' *1' 8 7567 7', 706 7&. 7'2 1567 3 5 5 9'' 5 . 5 . 1567 6: 6:3% 63,B166 63,B6&/. 63,B0,62 63,B026, 63,5,7B6'1 6(/B63,5,7 9'' 9 26&287 & X) 26&,1 ; & S) 5 5 ; 9'' *1' 5 . 9'' & Q) 26&287 & S) 26&,1 5 5 5)B:,3 5)B:,3 7567 7'2 7', 7&. 9'' *1' & 706 Q) ' ' 6(/B$ ,17B$ ,17B$ *3,2 *3,2 *3,2 *3,2 *3,2 *3,2 *3,2 *3,2 6(/B7 (9(17 *1' .+] 0+] 9OFG 9GGB 3& 9VVB 3& 3% 3& 3% 26&B,1 %227 26&B287 3% 3% 1567 9 VVD 3% 9 GGD 3% 3% 3$ 3 3$ 3$ 3$ 3$ 9 GGB 3$ 9 VVB 3$ 3$ 3$ 3$ 3$ 3$ 3$ 3$ 3% 3$ 3% 3$ 3% 3% 3% 3% 3% 9 3% 9VVB 9 3% 9GGB 8 & 670/&%7 Q) 6(/B0(0 6(/B63,5,7 9B021,725,1* 63,B166 63,B6&/. 63,B0,62 63,B026, 6(/B3 ,17 ,17 *1' 9'' 9'' 63,5,7B6'1 26&,1 26&287 26&,1 26&287 1567 *1' 9'' $0 6'$ 6&/ 5 . AN4395 Transmitter board schematics and bill of material Figure 4. Board schematic - microcontroller 5/24 24 6/24 5 02KP DocID025513 Rev 1 - /'2B(1 /'2B(1 & Q) 6*1' 6285&( 39 9EDWW 9%$77BRXW 6833/<B6)+ $0%,(17B/,*+7B3,1 $0%,(17B/,*+7 6: 6725( 73 6725( %$77 &21) /'2 /'2 ,1B/9 %$77B&+* - & & X) X) 9EDWW & Q) %$77B&211 8 73 639 6725( 893 (2& %$77B&2 11 %$77B&+* /'2B(1 6: 033 0336(7 0335() 6*1' /'2B(1 /B+9 , 1B+9 033B5() 73 033 , 1B/9 3*1' 033B6(7 5 . & X) /B+9 / X+ 6725( 73 73 033 5 02KP 39 6285&( +$59(67(5$1' 7+,1),/0%$77(5<0$1$*(5 5 . $0%,(17B/,*+7 5 02KP 5 02KP 5 02KP 73 9%$77BRXW 6*1' 6*1' %7 9 73 (2& 73 893 6725( ()/ 8 73 /'2 /'2B9 /'2B9 & Q) 73 73 6725( 5 N 5 N & Q) 73 /'2 67/4;; 8 67/4 $'-287 *1' 1& ,1 8 /'2B9 & Q) (1 *1' ,1 32:(5 021,725,1* - 39 3$1(/ 6285&( - - $0%,(17B/,*+7B3,1 6833/<B6)+ 86%(;7(51$/6833/< 5 02KP 95 0 5 02KP 1& 1& 287 9 & X) & X) & X) X) &; 9B021,725,1* 9287 9 - 8 6)+ 8 $0%,(17/,*+76(1625 - $09 9B021,725,1* 9287 9 6725 ( Transmitter board schematics and bill of material AN4395 Figure 5. Board schematic - photovoltaic harvester 6285&( 39 9EDWW 9%$77BRXW 6833/<B6)+ $0%,(17B/,*+7B3,1 $0%,(17B/,*+7 AN4395 Transmitter board schematics and bill of material Table 1. Transmitter board - bill of material Item Qty. Designator SCI part number Value 1 1 BT1 BATT-CR2450-3V6 3.6 V 2 9 C1, C2, C3, C7, C13, C15, C33, C42, C43 CCERSMD104-0402M 100 nF 3 1 C4 CCERSMD226-0603V 22 F 4 2 C5, C6 CCERSMD060-0402 6 pF 5 1 C8 6 2 C9, C20 CCERSMD106-0603R 10 F 7 1 C10 CCERSMD105-0603T 1 F 8 1 C11 CCERSMD101-0402M 100 pF 9 3 C12, C16, C28 CCERSMD331-0402 330 pF 10 1 C14 CCERSMD105-0603T 1 F 11 2 C17, Ctun1 DNM 12 2 C18, C23 DNM 13 1 C19 CCERSMD221-0603 220 pF 14 2 C21, C31 CCERSMD221-0402 220 pF 15 1 C22 CCERSMD070-0402 7 pF 16 1 C24 CCERSMD024-0402 2.4 pF 17 1 C25 CCERSMD036-0402 3.6 pF 18 2 C26, C27 CCERSMD180-0402 18 pF 19 1 C29 CCERSMD103-0402M 10 nF 20 1 C30 CCERSMD015-0402 1.5 pF 21 1 C32 CCERSMD020-0402 2 pF 22 2 C34, C35 CCERSMD105-0603T 1 F 23 1 C36 CCERSMD104-0603T 100 nF 24 2 C37, C38 CCERSMD105-0603T 1 F 25 2 C39, C40 CCERSMD476-0805K 47 F 26 1 C41 CCERSMD103-0603R 10 nF 27 1 C44 CCERSMD474-0603P 470 nF 28 1 CN1 USB-MICROB-SMD USB 29 1 CN2 SAM-TSW10208GSRA Header 2 30 1 Ctun2 31 4 D1, D2, D3, D4 DBAT41M-SMD Schottky 32 1 J1 BNC-SMA-9EL-SMD BNC 33 1 No reference: antenna to be screwed on J1 LPRS - WR868 868 MHz to 915 MHz, SMA antenna 34 1 J2 STRIP2PM JUMPER 10 F - DNM DNM DocID025513 Rev 1 7/24 24 Transmitter board schematics and bill of material AN4395 Table 1. Transmitter board - bill of material (continued) Item Qty. Designator SCI part number Value 35 6 J3, J4, J5, J6, J7, J9 STRIP1X3-M-SMD ST_19_STRIP3_100M_V_ 36 1 J8 SAM-SMH10802GD Header 8X2 37 1 JP1 SAM-TMM10302GD STRIP2X3 38 1 L1 INDLQM21FN100M70 10 H 39 1 L2 IND0402CS-27N 27 nH 40 1 L3 INDLQG15HSR10J02 100 nH 41 1 L4 42 1 L5 INDLQG15HN3N6S02 3.6 nH 43 1 L6 INDLQG15HN5N1S02 5.1 nH 44 1 L7 RESMD000-0402 0 45 1 L8 INDLQG15HN18NJ02 18 nH 46 2 L9, L10 INDLQG15HN15NJ02 15 nH 47 1 L11 INDSMD4,7UH82464 Antenna 48 1 L12 IND-LPS4018223ML 22 H 49 1 P1 STRIP40PMD90 STRIP 8 POLI 50 13 R1, R2, R3, R4, R5, R16, R17, R18, R19, R20, R26, R27, R28 RESMD101-0402 100 51 2 R6, R7 RESMD100-0402 10 52 2 R8, R9 RESMD104-0402 100 K 53 4 R10, R11, R12, R13 RESMD103-0402 10 K 54 1 R14 RESMD561-0402 560 55 1 R15 RESMD000-0402 0 56 2 R21, R29 RESMD754-0603 750 K 57 1 R22 RESMD244-0603 240 K 58 1 R23 RESMD124-0603 120 K 59 1 R24 RESMD104-0603 100 K 60 1 R25 RESMD4223-0603 422 K 61 1 R30 RESMD823-0603 82 K 62 1 R31 RESMD105-0603 1 M 63 1 R32 RESMD125-0603 1.2 M 64 1 R33 RESMD562-0603 5.6 M 65 1 R34 RESMD185-0603 1.8 M 66 2 R35, R38 RESMD305-0603 3 M 67 1 R36 RESMD106-0603 10 M 68 1 R37 RESMD684-0603 680 K 8/24 DNM DocID025513 Rev 1 AN4395 Transmitter board schematics and bill of material Table 1. Transmitter board - bill of material (continued) Item Qty. Designator SCI part number Value 69 1 R39 RESMD5361-603-01 5.36 k 70 1 R40 RESMD2051-0603 2.05 k 71 1 SW1 PULS-B3U1100-SMD SW-PB 72 4 SW2, SW4, SW6, SW7 STG3220QTR-SMD STG3220 73 4 SW3, SW5, SW8, SW9 STG5223QTR-SMD STG5223 74 2 SW10, SW11 RS 712-2558 SW SLIDE-SPST 75 3 TP1, TP3, TP17 TEST2 TEST2 76 2 TP2, TP4 TEST2-R TEST2 77 12 TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14, TP15, TP16 78 1 U1 STM32L151-SMD STM32L151CB5T6 79 1 U2 STTS7510WB3-SMD STTS751 80 1 U3 LIS3DH-SMD LIS3DH 81 1 U4 LPS331AP-SMD LPS331APY 82 1 U5 SPIRIT1QTR-SMD SPIRIT1 83 1 U6 M24LR64ER-SMD M24LR64E-R 84 1 U7 STLQ50C-R-SMD STLQ50 85 1 U8 PTR-SFH5711-SMD SFH5711 86 1 U9 ST715MR-SMD ST715MR 87 1 U10 STLQ015XG25R-SMD STLQ015XX 88 1 U11 KIT-EXT SPV1050 89 2 U12 PANN-AM-1801 PV PANEL 90 1 U13 BATT-HOLD-2450 BATT-HOLD-2450 91 1 VR1 RTR-3312-2M-SMD 0 - 2 M 92 1 X1 Q4MHZ-SMD-RISZ 4 MHz 93 1 X2 Q32,768-ABS07SMD XT-2PIN 94 1 XTAL1 Q50MHZ-TXC7M-SMD 50 MHz 95 1 CX1 CCERSMD225-0805X 2.2 F DNM DocID025513 Rev 1 9/24 24 Transmitter board layout 2 AN4395 Transmitter board layout Figure 6. Transmitter board - top layer view Figure 7. Transmitter board - inner layer 1 view 10/24 DocID025513 Rev 1 AN4395 Transmitter board layout Figure 8. Transmitter board - inner layer 2 view Figure 9. Transmitter board - bottom layer view DocID025513 Rev 1 11/24 24 12/24 *3,2B 6'2 6', 6&/. &6Q 6'Q 6036 6036 7; 5(;7 DocID025513 Rev 1 0 0+] ;7$/ *1' & S) 5;1 5;3 9%$7 ;, 1 ;287 *3,2 63,B0,62 63,B026, 63,B6&/. 63,B166 & Q) 9%$7 95(* *3,2B *3,2B *3,2B *3,2 63,B0,62 63,B026, 63,B6&/. 63,B166 *3,2 *3,2 *3,2 *3,2 *3,2 *3,2 & S) & S) X+ 9'' & Q) / 8 63,5,7 & S) / Q+ / Q+ & S) Q+ / S) S) 1& & & S) & & S) 5 QF / / & Q) & Q+ & S) Q+ &WXQ 1& / Q+ / & S) & X) 63,5,7B6'1 / / Q+ 63,5,7B6'1 & S) S) & $0 - %1&60$)(0 (1'/$81&+ 3 & X) 9'' Receiver board schematics and bill of material AN4395 Receiver board schematics and bill of material Figure 10. Receiver board schematic - RF transmitter/receiver 9 5 5 86% 9&& ' ' *1' 6+,(/' DocID025513 Rev 1 & Q) & X) 9 & 10 *1' 5 5 5 0 6705 627/ ,1 287 1& *1' )% 8 5 ' 5 ' 7(6732,17 7(6732,17 9 73 73 7(6732,17 7(6732,17 3 73 73 9'' 7'2 5 . 9'' 5 . 5 . 5 5 5 5 10 3 & X) & 10 -803(5 - -7$* )/$732/, 1567 . . 7567 7', 706 7&. . 9'' 9'' 6: 5(6(7 & X) 1567 9OFG 9GGB 3& 9VVB 3& 3% 3& 3% 26&B,1 %227 26&B287 3% 1567 3% 9VVD 3% 9GGD 3% 3$ 3% 3$ 3$ 3$ 3$ 3$ 9GGB 3$ 9VVB 3$ 3$ 3$ 3$ 3$ 3$ 3% 3$ 3% 3$ 3% 3$ 3% 3% 3% 3% 9VVB 3% 9GGB 3% 8 26&287 26&,1 ; & S) 5 5 ; 5 5 *3,2 *3,2 *3,2 *3,2 *1' 706 ' ' 7567 7'2 7', 7&. *1' *1' .+] 0+] & 670/&%7 Q) 9'' 63,5,7B6'1 63,5,7B6'1 26&,1 26&287 26&,1 26&287 1567 *1' 9'' 63,B166 63,B166 63,B6&/. 63,B6&/. 63,B0,62 63,B0,62 63,B026, 63,B026, *1' 9'' $0 & S) 26&,1 26&287 *3,2 *3,2 *3,2 *3,2 & Q) 9'' & Q) 9'' AN4395 Receiver board schematics and bill of material Figure 11. Receiver board schematic - microcontroller 13/24 24 Receiver board schematics and bill of material AN4395 Table 2. Receiver board - bill of material Qty. 5 Designator Part number SCI C1, C2, C3, C15, C17 CCERSMD104-0402M Comment Part description 100 nF Mult. cer. cap. 16 V SMD 0402 1 C4 CCERSMD226-0603V 22 F Mult. cer. cap. 6.3 V SMD 0603 2 C5, C6 CCERSMD060-0402 6 pF Mult. cer. cap. 50 V SMD 0402 1 C7 CCERSMD104-0603V 100 nF Mult. cer. cap. 50 V SMD 0603 2 C8, C11 N. M. Mult. cer. cap. 6.3 V SMD 0603 1 C9 CCERSMD105-0603M 1 F Mult. cer. cap. 25 V SMD 0603 1 C10 CCERSMD475-0603 4.7 F Mult. cer. cap. 6.3 V SMD 0603 1 C13 CCERSMD101-0402M 100 pF Mult. cer. cap. 50 V SMD 0402 3 C14, C18, C26 CCERSMD331-0402 330 pF Mult. cer. cap. 50 V SMD 0402 2 C19, Ctun1 N. C. Mult. cer. cap. SMD 0402 2 C20, C29 CCERSMD221-0402 220 pF Mult. cer. cap. 50 V SMD 0402 1 C21 CCERSMD070-0402 7 pF Mult. cer. cap. 50 V SMD 0402 1 C22 CCERSMD024-0402 2.4 pF Mult. cer. cap. 50 V SMD 0402 1 C23 CCERSMD036-0402 3.6 pF Mult. cer. cap. 50 V SMD 0402 2 C24, C25 CCERSMD180-0402 18 pF Mult. cer. cap. 50 V SMD 0402 1 C27 CCERSMD103-0402M 10 nF Mult. cer. cap. 50 V SMD 0402 1 C28 CCERSMD015-0402 1.5 pF Mult. cer. cap. 50 V SMD 0402 1 C30 CCERSMD020-0402 2pF Mult. cer. cap. 50 V SMD 0402 1 J1 BNC-SMA-9EL-SMD BNC Female SMA end launch jack 1 No reference: antenna to be screwed on J1 LPRS - WR868 Antenna 868 MHz to 915 MHz, SMA antenna 1 J2 STRIP2PM Jumper Male strip 2 poles 1 L1 INDLQM21FN100M70 10 H SMPS out inductor - Murata LQM21 series 1 L2 IND0402CS-27N 27 nH SMPS out inductor - Coilcraft 1 L3 INDLQG15HSR10J02 100 nH TX PA choke 1 L4 N. C. SMD inductor 0402 1 L5 INDLQG15HN3N6S02 3.6 nH TX LPF 1st series 1 L6 INDLQG15HN5N1S02 5.1 nH TX LPF 2nd series 1 L7 RESMD000-0402 0 Resistor 1/16 W 1% SMD 0402 1 L8 INDLQG15HN18NJ02 18 nH TX LPF 2nd series 2 L9, L10 INDLQG15HN15NJ02 15 nH TX LPF 2nd series 1 P1 M.20.90 LP 20 Flat 20-way flat connector (horizontal) 1 P2 SAMTECUSBB USB SAMTEC USB B connector, right angle 2 R2, R3 RESMD100-0402 10 Resistor 1/16 W 1% SMD 0402 1 R4 RESMD105-0402 1 M Resistor 1/16 W 1% SMD 0402 14/24 DocID025513 Rev 1 AN4395 Receiver board schematics and bill of material Table 2. Receiver board - bill of material (continued) Qty. Designator Part number SCI Comment Part description 4 R5, R6, R7, R8 RESMD103-0402 10 K Resistor 1/16 W 1% SMD 0402 1 R9 RESMD561-0402 560 Resistor 1/16 W 1% SMD 0402 1 R10 RESMD000-0402 0 Resistor 1/16 W 1% SMD 0402 1 R11 N. M. Resistor 1/10 W 1% SMD 0603 1 R12 RESMD9761-0603 9.76 K Resistor 1/10 W 1% SMD 0603 1 R13 RESMD562-0603 5.6 K Resistor 1/10 W 1% SMD 0603 1 R14 RESMD0R01-0603 0.01 Resistor 1/10 W 1% SMD 0603 1 SW1 PULS-DTSM61-SMD Reset Pushbutton_SMD 2 TP1, TP3 TEST2-R TEST2 PCB test point - raised loops 2 TP2, TP4 TEST2 TEST2 PCB test point - raised loops 1 U1 STM32L151-SMD STM32L15 1CB5T6 Microprocessor - SMD LQFP48 1 U2 ST715MR-SMD ST715MR High input voltage - 85 mA LDO linear regulator - SOT23-5L 1 U3 KIT-EXT SPIRIT1 ST 1 X1 Q4MHZ-SMD-RISZ 4 MHz 4 MHz SMD RESONATOR 1 X2 Q32,768-ABS07SMD XT-2PIN QUARTZ ABRACON SMD ABS07 1 XTAL1 Q50MHZ-TXC7M-SMD 50 MHz QUARTZ 50 MHz SMD TXC 7M series DocID025513 Rev 1 15/24 24 Receiver board layout 4 AN4395 Receiver board layout Figure 12. Receiver board - top layer view Figure 13. Receiver board - bottom layer view 16/24 DocID025513 Rev 1 AN4395 5 STEVAL-IDS002V1 reference kit description (SPIDEr™) STEVAL-IDS002V1 reference kit description (SPIDEr™) The STEVAL-IDS002V1 kit includes two different boards: The TX board integrating both the harvesting module and the sensor/transmitting module. The RX board that only receives data and lets them available to the PC GUI. The harvesting module on the TX board is based on the SPV1050 ULP energy harvester, battery charger and power manager IC. Purposes of the harvesting module are extracting the maximum power allowable from the on-board PV panel, controlling the battery charging and supplying the sensor/transmitting module. For an exhaustive description of the SPV1050 device, please refer to the related datasheet. The power efficiency and MPPT accuracy of the harvesting module can be monitored by connecting the power monitoring board on J8 and lunching the provided software. Figure 14 shows the transmitter board connected to the power monitoring board. Figure 14. Power monitoring and STEVAL-IDS002V1 A complete description of the software and GUI is reported in the software user manual UM1752. Just as an example, Figure 15 shows the efficiency tab of the GUI displaying: The actual PV panel curve according to the ambient light conditions The green dot indicating the real working point The blue dot indicating the maximum power point The table (on the top right side of the screen) reporting the main system parameters and performances. DocID025513 Rev 1 17/24 24 STEVAL-IDS002V1 reference kit description (SPIDEr™) AN4395 Figure 15. Efficiency tab example The sensor/transmitting module on the TX board is a complete autonomous wireless sensor node, including three different environment sensors based on MEMS technology, a lowpower embedded radio, a dual port Flash memory providing a NFC interface and a dedicated microcontroller. Main components are: Sensors 1.Temperature sensor STM STTS751 2. Pressure sensor STM LPS331 3. 3-axis accelerometer STM LIS3DH Low power radio STM SPIRIT1 DP memory + NFC interface STM M24LR64E Microcontroller STM STM32L151CB5T6 All devices (except the microcontroller) can be physically disconnected via dedicated power switches, which are dynamically configured through the software GUI. All other characteristics of the node are customized by the GUI too, such as the sampling period, transmission delay, and radio configuration. Moreover the TX board can be used as an extra harvesting source, thanks to the M24LR64E DP memory. As a matter of fact the M24LR64E device works as an RF harvesting module, in the frequency range of NFC communication, so that it is able to provide (through a dedicated pin) a certain energy amount while it is read / written. 18/24 DocID025513 Rev 1 AN4395 STEVAL-IDS002V1 reference kit description (SPIDEr™) 5.1 TX board connectors and jumpers 5.1.1 Sensor/transmitting module connectors and jumpers CN1 (6-pin): micro-USB connector Table 3. CN1 connector Pin 1 2 3 4 5 6 IN INOUT INOUT INOUT INOUT INOUT VUSB (5 V) D- D+ ID GND SHIELD Direction/supply Signal CN2 (2-pin): external antenna connector Use the pin 1 and pin 2 of CN2 to connect an external antenna, alternative to the one onboard (J1). Set properly JP1 in case an external antenna is connected on CN2. P1 (8-pin connector): dedicated JTAG connector Table 4. P1 connector Pin 1 2 3 4 5 6 7 8 Direction/supply OUT OUT IN OUT OUT OUT OUT INOUT Signal VDD TRST TDI TMS TCK TDO NRST GND Table 5. JP1 connector JP1 Function CLOSE: 3 - 5 and 4 - 6 to use the on-board antenna CLOSE: 1 - 3 and 2 - 4 to use external antenna on CN2 Table 6. J2 jumper J2 Function CLOSE: sensor/transmitting module supplied by the harvesting module OPEN: sensor/transmitting module supplied by external USB (for test functions) DocID025513 Rev 1 19/24 24 STEVAL-IDS002V1 reference kit description (SPIDEr™) 5.1.2 AN4395 Harvesting module connectors and jumpers Table 7. J3 jumper J3 Function CLOSE2 - 3: STORE pin supplied by the USB cable OPEN 1 - 2: STORE pin supplied by the energy harvesting source. Table 8. J4 jumper J4 Function CLOSE 1 - 2: not used OPEN 1 - 2: enables ambient light sensing from the monitoring board Table 9. J5 jumper J5 Function CLOSE1 - 2: bypasses power monitoring sense and supplies directly the SPV1050 OPEN 1 - 2: enables input sensing from the power monitoring board Table 10. J6 jumper Function CLOSE 1 - 2: bypasses power monitoring sense and connects the battery to the BATT pin OPEN 1 - 2: enables output sensing from the power monitoring board Table 11. J7 jumper J7 Function CLOSE 2 - 3: harvesting board supplied by the on-board PV panel OPEN: enables alternative source from J9 J9 (2-pin connector) This connector is provided to supply the SPV1050 device by supply source alternative to the on-board PV panel. In case a supply source is connected to J9, then J7 must be open. Table 12. J9 connector Pin Direction/supply Signal 20/24 1 2 SUPPLY SUPPLY SOURCE + SOURCE - DocID025513 Rev 1 AN4395 STEVAL-IDS002V1 reference kit description (SPIDEr™) J8 (16-pin monitoring connector) It provides the connection to the power monitoring board. Table 13. J8 connector Pin 1-2 3-4 5-6 7-8 9 - 10 11 - 12 13 - 14 15 - 16 Direction/supply OUT OUT OUT OUT SUPPLY OUT OUT SUPPLY SOURCE PV+ Vbatt+ VBATT_ OUT SUPPLY_ SFH5711 Signal AMBIENT_ AMBIENT LIGHT_PIN _LIGHT GND SOURCE, PV+: Harvesting source current sensing pins. If the power monitoring board is used, then the jumper J5 must be left open; otherwise (power monitoring board not used) pins 1 - 2 of J5 must be shorted. VBATT+, VBATT_OUT: Battery current sensing pins. If the power monitoring board is used, then the jumper J6 must be left open; otherwise (power monitoring board not used) pins 1 - 2 of J6 must be shorted. SUPPLY_SFH5711: Power supply of the ambient light sensor pin (placed on the top side of the board). The ambient light sensor is supplied and used only when the power monitoring board is connected. AMBIENT_LIGHT, AMBIENT_LIGHT_PIN: Ambient light current sensing pins. If the power monitoring board is used, then the jumper J7 must be left open. GND: Ground pin. Table 14. SW1 - SW2 SW1 CLOSE 1 - 3: LDO1 DISABLED SW2 CLOSE 1 - 3: LDO2 DISABLED (sensor/transmitter module not supplied) Function CLOSE 2 - 3: LDO1 ENABLED CLOSE 2 - 3: LDO2 ENABLED (sensor/transmitter module supplied) DocID025513 Rev 1 21/24 24 STEVAL-IDS002V1 reference kit description (SPIDEr™) 5.2 AN4395 RX board connectors and jumpers P1 (20-pin connector): standard JTAG connector Table 15. P1- part 1 Pin 1-2 3 5 7 9 11 13 15 Direction OUT OUT IN OUT OUT INOUT OUT OUT Signal VDD TRST TDI TMS TCK PD TDO NRST Table 16. P1 - part 2 Pin 17 - 19 2 - 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 Direction INOUT INOUT PD GND Signal P2 (5-pin): standard USB connector Table 17. P2 Pin 1 2 3 4 5 Direction IN INOUT INOUT INOUT INOUT VUSB (5 V) D- D+ GND SHIELD Signal Table 18. J2 J2 Function 22/24 CLOSE 1 - 2: USB direct supply OPEN 1 - 2: Alternative supply from P1 DocID025513 Rev 1 AN4395 6 Revision history Revision history Table 19. Document revision history Date Revision 27-May-2014 1 Changes Initial release. DocID025513 Rev 1 23/24 24 AN4395 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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