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Schematic

Layout

3D View

explain this project.
2
C28
Capacitance
100nF
+3V3
+3V3
+3V3
C27
Capacitance
100pF
+3V3
+3V3
R15
Resistance
10kΩ
Can connect a DHT11 or DHT22 Sensor
R10
Resistance
470 Ω
One-Wire protocol relies on the bus being pulled high by the pull-up resistor when not actively transmitting
TEMP & HUMIDITY CIRCUIT
RF filter capacitors, C27, should be the closest to the microphone
R12
Resistance
50 Ω
MICROPHONE CIRCUIT
R5
Resistance
5kΩ
MIC_WS
LORA_NRST
DHT_DATA
MIC_SDA
MIC_SCL
J6
MK1
C29
Capacitance
100nF
SW2
J8

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