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D1
C4
Capacitance
10uF
ESP_RX
CC1
TOUT
ADC
C11
Capacitance
0.1uF
GPIO15
GPIO14
C8
Capacitance
10uF
ESP_TX
CC2
ESP_IO0
USBDN
ESP_IO0
C6
Capacitance
0.1uF
C7
Capacitance
0.1uF
GPIO16
GPIO5
USBDP
GPIO13
TOUT
GPIO12
C10
Capacitance
0.1uF
USBDN
ESP_RX
GPIO4
USBDN
ESP_EN
USBDP
C12
Capacitance
0.1uF
GPIO2
RST
CC2
ESP_TX
ESP_EN
ESP_IO0
ESP_EN
USBDP
+3V3
ESP1
VBUS
R1
Resistance
Resistance
Resistance
10kΩ
R8
Resistance
Resistance
Resistance
82kΩ
+3V3
PWR
R7
Resistance
Resistance
Resistance
220kΩ
R2
Resistance
Resistance
Resistance
5.1kΩ
+3V3
C9
Capacitance
10uF
R4
Resistance
1kΩ
EN
Q1
+3V3
R3
Resistance
Resistance
Resistance
5.1kΩ
+5V
C5
Capacitance
10uF
+3V3
VBUS
U1
+5V
+3V3
R6
Resistance
Resistance
Resistance
10kΩ
BOOT
IC1
R5
Resistance
Resistance
Resistance
10kΩ
Q2
+3V3


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ESP-WROOM-02 Reference Design

ESP-WROOM-02 Reference Design thumbnail
This project is a reference design for an ESP-WROOM-02 based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design #polygon

Pricing & Availability

Distributor

Qty 1

Digi-Key

$1.06–$2.47

LCSC

$1.38–$1.68

Mouser

$2.36

Controls