ESP8266 ESP-04 WiFi Transceiver Module
ESP-04 module (link is external) is one of the smallest ESP8266 boards. Its size is approximately 12.5×14.5mm i. e. smaller than 1 euro coin. It is Surface Mount Technology (SMT) module with 2mm pad spacing. The module has no on-board antenna.
Seven GPIO pins are broken out: GPIO0, GPIO2, GPIO12, GPIO13, GPIO14, GPIO15, GPIO16. Not a record, but it’s enough for many projects.
ESP-04 “external interface” consists of 14 pads arranged in two rows on the opposite sides of the board. For some reason the manufacturer left one pad not connected anywhere.
- It run LWIP
- 802.11 bgn
- WIFI Direct (P2P),SOFT-AP
- Built-in TCP/IP
- The AT command is perfect,efficient,concise
- Support three modes: AP, STA and AP+STA coexistence mode
1 x ESP-04 Wireless Module
Out of stock