Schematics

Buzzer & MIC
1uF
10K
100K
100K
1K 10K
10K1K
100nF
1uF
B4013AM422-042
LET5020CS-03L-4.0-12-R
2N7002,215
0R
33R
100K
B5819WS
LMV358IDGKR
DHT-1500
100K 100K 100K 100K 100K
C34
R22
R23
R24
R25 R26
R27R28
C33
C55
+
1
-
2*4
MIC1
+
+
-
-
BUZ1
Q4
R5
R6
R7
D5
2
3
1
84
U2A
7
6
5
U2B
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
SW1
R37 R84 R85 R86 R87
VCC_3V3
MIC_OUTPUT
VCC3V3_MCU_D
BUZZER_CTR
VCC3V3_MCU_A
VCC3V3_MCU_A
SWITCH_Y
SWITCH_X
SWITCH_B
SWITCH_U
SWITCH_Z
Seeed Studio
TITLE:
Design: Check:
Date: Vision:
CC-BY-SA
A
B
C
D
E
1 2 3 4 5 6 7 8
A
B
C
D
E
1 2 3 4 5 6 7 8