Chao at 13:46, 4 February 2020

2020-02-04T13:46:14Z

New page

ESP-01S
<gallery>
File:ESP-01-Pinout.jpg | ESP-01S
</gallery>

== Quick Start Guide ESP-01S ==

=== Module Pin Description ESP-01 ===
* Normal mode: Normal boot from flash, normal working mode
* Flash mode: Firmware flash mode
{| class="wikitable sortable"
|-
! Pin !! Working Mode !! Flash Mode !! Description
|-
| VCC, GND* || || || power supply, better use a standalone, and share ground with uart port
|-
| TXD, RXD** || || || uart interface
|-
| RST|| || || Restart on low TTL
|-
| CH_PD || 1 || 1 || Chip select enable, constant High TTL always
|-
| GPIO 15 || 0 || 0 || Low TTL on boot , N/A for ESP-01
|-
| GPIO0 || 1 || 0 || Switch working / flash mode
|-
| GPIO 2 || 1 || 1 || High TTL on boot
|-
| Red LEDs || || || (cancelled on latest) constants on to show the power status
|-
| Blue LEDs || || || blink when data come through
|}

=== Module wiring ===
<gallery>
File:Esp8266_esp-01.png| Pin definition ESP-01
File:CH340_esp8266.png|use with CH340 USB-TTL
File:Battery_with_esp12.jpg| battery with esp12
</gallery>
* Use FT232RL can supply enough power, must be genius IC of course
* Swap the uart pins if no data show up on the monitor
* There are two leds on the board, one is power led (RED), another one is status LED(BLUE), when power up, pwr led keeps on and status led will blink once.
* baud rate may work at '''9600 or 115200'''

=== Setup Check list ===
{| class="wikitable sortable" aligh = "right"
|-
! Check list !! Description
|-
| Check default wifi status || if your devices (e.g. your phone) can find a wifi spot named like "ESP_98529F", "AI-...." or similar, the later number part is the mac ID, if you can see this wifi spot, it means your module boot up successfully
|-
| check LED status and wiring || blue led will blink once on boot up, serial data output "ESP Ready", Tick "new line" option on USB-TTL serial port monitor tool, Try baudrate 9600 or 115200 default firmware use these two
|-
| Check power supply || use shared GND will standalone power supply
|-
| Check IO15 status || connect GPIO15 to GND on boot if you are using the SMD model
|}

<gallery>
File:Espwifi01.png | "ESP_990B15" is the module wifi spot, password 0123456789
File:Espwifi02.jpg
File:Espwifi03.png | See the final "ready" when boot up successfully
</gallery>
* Use power source that can provide sufficient current, better not using power from USB-TTL module
* Module will automatically disconnect "unlink" TCP/UDP when no data go through
* Wifi password length must be more than 8 bytes

[[category: ESP8266 Modules]]

ESP-01S - Revision history

Chao at 13:46, 4 February 2020