ESP-14

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ESP-14
  • 1 M PC5 STM8 PC5 port
  • 2 M_PC6 STM8 PC6 port
  • 3 M_PC7 STM8 PC7 mouth
  • 4 GND GND
  • 5 M_PD3 STM8 PD3 port
  • 6 M_PD4 STM8 PD4 port
  • 7 M_NRST STM8 NRST port
  • 8 GND common ground
  • 9 M_PD2 STM8 PD2 port
  • 10 M_PD5 STM8 PD5 port
  • 11 M_PD6 STM8 PD6 port
  • 12 M_PA1 STM8 PA1 port or crystal input port
  • 13 M_PA2 STM8 PA2 port or oscillator output
  • 14 E_GPIO0 ESP8266 GPIO0 port: 1) Default WiFi Status. 2) Operating mode selection.
  • 15 M_VCAP STM8 VCAP port
  • 16 M_VDD STM8 power supply pin
  • 17 E_VDD ESP8266 power supply pin
  • 18 M_PA3 STM8 PA3 port
  • 19 M_PB5 STM8 PB5 port
  • 20 M_PB4 STM8 PB4 port
  • 21 M_PC3 STM8 PC3 port
  • 22 M_PC4 STM8 PC4 port


Pin Definition

  • ESP-14


ESP-14

Specs Power consumption The following data is based on a 3.3V power supply, ambient temperature 25 ° measured.
[1] All measurements were performed at the antenna interface.
[2] all transmit data based on a 90% duty cycle, continuous transmission mode at measured.
Mode Min Max Unit usual

  • Transfer 802.11b, CCK 1Mbps, Pout = + 19.5dBm 215 mA
  • Transfer 802.11b, CCK 11Mbps, Pout = + 18.5dBm 197 mA
  • Transfer 802.11g, OFDM54 Mbps, Pout = + 16dBm 145 mA
  • Transfer 802.11n, MCS7, Pout = + 14dBm 135 mA
  • Receiving 802.11b, packet length of 1024 bytes, -80dBm 100 mA
  • Receiving 802.11g, packet length of 1024 bytes, -70dBm 100 mA
  • Receiving 802.11n, packet length of 1024 bytes, -65dBm 102 mA
  • System Standby mode 70 mA
  • 0.5 μA shutdown

RF specs The following data is at room temperature, the measured voltage is 3.3V.
Description Min Max Unit usual

  • 2412 2484 MHz input frequency
  • Input resistance 50 Ω
  • -10 DB input reflection
  • Under 72.2Mbps, PA output power 14 15 16 dBm
  • 802.11b mode, PA output power 17.5 18.5 19.5 dBm

Sensitivity

  • CCK 1Mbps -98 dBm
  • CCK 11Mbps -91 dBm
  • 6Mbps (1 / 2BPSK) -93 dBm
  • 54Mbps (3/4 64-QAM) -75 dBm
  • HT20, MCS7 (65Mbps, 72.2Mbps) -71 dBm
Adjacent suppression
  • OFDM, 6Mbps 37 dB
  • OFDM, 54Mbps 21 dB
  • HT20, MCS0 37 dB
  • HT20, MCS7 20 dB

Note: 1) 72.2Mbps under 802.11n mode, MCS = 7, GI = 200uS when measured; 2) 802.11b mode output power up to + 19.5dBm of;