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Schematic

Layout

3D View

Sim800L
R7
Resistance
10kΩ
R3
Resistance
10kΩ
R8
Resistance
10kΩ
R12
Resistance
10kΩ
R2
Resistance
10kΩ
R10
Resistance
10kΩ
R11
Resistance
10kΩ
OLED
R6
Resistance
10kΩ
R1
Resistance
10kΩ
R4
Resistance
10kΩ
R9
Resistance
10kΩ
encoder
io33
io05
io16
scl
io18
io33
HSPI_MISO
Terminal block
io02
HSPI_SCK
HSPI_MISO
io04
sda
io15
io27
LED2
scl
LED1
io15
sda
io17
io23
HSPI_MISO
io23
io13
io17
io26
io27
io17
io04
HSPI_MOSI
io00
sda
HSPI_SCK
io18
io02
io05
HSPI_MISO
io25
scl
io19
io16
io26
io32
io00
io16
HSPI_MOSI
io32
io19
LED3
io02
HSPI_MOSI
button1
button2
AHT20+BMP280
rgb-led
7-segmental
ESP
microfon
matrix-led
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