ESP-03 ESP8266 WiFi Transceiver Module (802.11 b/g/n)
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Circuits Electronics | WiFi ESP8266 ESP-03 Transreceiver Wireless Module | 230 EGP | View in store |
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Lowest price recorded: 230 EGP
About this product
The ESP-03 is a WiFi module built around the ESP8266 chip, operating on 2.4 GHz with 802.11 b/g/n. It has a built-in ceramic antenna and an integrated TCP/IP stack, and exposes GPIO and one ADC input on 2 mm pitch pins. It is used to add wireless connectivity to microcontroller projects and IoT devices.
Specifications
- Wi-Fi standard
- 802.11 b/g/n
- Frequency
- 2.4 GHz
- Interfaces
- SDIO, SPI, UART
- GPIO / ADC
- 7 GPIO, 1 ADC
- Pin pitch
- 2 mm
- Antenna
- Built-in ceramic
- Dimensions
- 17.4 x 12.2 mm
- Max output power (802.11b)
- +19.5 dBm
Frequently asked questions
What is the price of ESP-03 ESP8266 WiFi Transceiver Module (802.11 b/g/n) in Egypt?
ESP-03 ESP8266 WiFi Transceiver Module (802.11 b/g/n) currently costs 230 EGP in Egypt.
Where can I buy ESP-03 ESP8266 WiFi Transceiver Module (802.11 b/g/n) in Egypt?
ESP-03 ESP8266 WiFi Transceiver Module (802.11 b/g/n) is available from Circuits Electronics. Compare the offers above to find the best price.
What supply voltage does it need?
The ESP8266 uses 3.3 V logic, so power the ESP-03 from a 3.3 V supply, not 5 V, and use a 3.3 V USB-serial adapter for UART. Provide a supply that can handle current peaks during Wi-Fi transmission.
How do I program it?
Connect a USB-serial adapter with TX and RX crossed, pull the EN (CH_PD) pin high, and hold GPIO0 low to enter flashing mode. Then upload your firmware with a tool such as the Arduino IDE or esptool.
