ESP8266 CP2102
$ 3.03

ESP8266 Uno D1
$ 4.07

ESP8266 with battery compartment and OLED display
$ 10.50

ESP8266 with OLED display
$ 12.37

ESP8266 with rectangular OLED display
$ 9.28

ESP8266 GPS / GSM / GPRS
$ 30.68

ESP32 camera
$ 5.70

ESP32 2.13 inch ePaper display
$ 13.16

ESP32 with OLED and Camera
$ 15.28

ESP8266 with separate OLED display and DHT11
$ 8.10

ESP8266 smart watch enclosure
$ 30.41

ESP8266 D1 Mini V3.0.0
$ 3.18

D1 Charging & Battery Boost Shield
$ 2.19

D1 5V Relay Shield
$ 2.05

433Mhz transmitter / receiver
$ 1.41

HC-06 Bluetooth tranceiver
$ 7.34

SD-card module
$ 2.14