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+Nodemcu V3 Lua WiFi module integrated ESP8266 + additional 32Mbit FLASH, USB serial port CP2102. |
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+ |
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+{{code language="none" title="dmesg"}} |
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+[46271.336289] usb 3-7.2: new full-speed USB device number 14 using xhci_hcd |
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+[46271.467461] usb 3-7.2: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00 |
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+[46271.467463] usb 3-7.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 |
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+[46271.467465] usb 3-7.2: Product: CP2102 USB to UART Bridge Controller |
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+[46271.467467] usb 3-7.2: Manufacturer: Silicon Labs |
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+[46271.467468] usb 3-7.2: SerialNumber: 0001 |
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+[46271.480537] cp210x 3-7.2:1.0: cp210x converter detected |
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+[46271.482413] usb 3-7.2: cp210x converter now attached to ttyUSB0 |
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+{{/code}} |
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+ |
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+{{code language="ini" title="platformio.ini"}} |
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+[env:nodemcuv2] |
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+platform = espressif8266 |
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+board = nodemcuv2 |
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+framework = arduino |
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+lib_deps = arduino-libraries/NTPClient@^3.1.0 |
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+ |
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+{{/code}} |
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+ |
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+Blink all GPIO pin and NTP (uses [[https:~~/~~/platformio.org/lib/show/551/NTPClient/>>https://platformio.org/lib/show/551/NTPClient/]]): |
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+ |
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+{{code language="c++" title="main.cpp"}} |
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+#include <Arduino.h> |
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+#include <ESP8266WiFi.h> |
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+#include <WiFiUdp.h> |
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+#include <NTPClient.h> |
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+const char *ssid = "<ssid>"; |
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+const char *password = "<wpa_password>"; |
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+ |
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+WiFiUDP ntpUDP; |
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+ |
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+NTPClient timeClient(ntpUDP, "ntp-b.nist.gov", 0, 60000); |
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+ |
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+ |
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+void f2(void (*f)(uint8_t, uint8_t), uint8_t val) { |
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+ |
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+// static const uint8_t D0 = 16; |
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+// static const uint8_t D1 = 5; |
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+// static const uint8_t D2 = 4; |
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+// static const uint8_t D3 = 0; |
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+// static const uint8_t D4 = 2; |
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+// static const uint8_t D5 = 14; |
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+// static const uint8_t D6 = 12; |
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+// static const uint8_t D7 = 13; |
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+// static const uint8_t D8 = 15; |
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+// static const uint8_t D9 = 3; |
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+// static const uint8_t D10 = 1; |
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+ |
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+ |
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+ for (uint8_t i = 0; i <= 5; i++) |
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+ (*f)(i, val); |
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+ for (uint8_t i = 12; i <= 16; i++) |
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+ (*f)(i, val); |
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+} |
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+ |
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+void setup() { |
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+ f2(&pinMode, OUTPUT); |
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+ |
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+ // Serial.begin(115200); |
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+ |
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+ WiFi.begin(ssid, password); |
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+ |
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+ while ( WiFi.status() != WL_CONNECTED ) { |
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+ delay ( 500 ); |
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+ // Serial.print ( "." ); |
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+ } |
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+ |
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+ |
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+ timeClient.begin(); |
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+} |
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+ |
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+ |
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+unsigned long t; |
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+ |
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+ |
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+void f1(uint8_t hl) { |
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+ timeClient.update(); |
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+ unsigned long t1; |
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+ for (; (t1 = timeClient.getEpochTime()) == t; delay(1)); |
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+ |
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+ t = t1; |
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+ // Serial.println(timeClient.getFormattedTime()); |
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+ |
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+ f2(&digitalWrite, OUTPUT); |
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+ |
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+} |
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+ |
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+void loop() { |
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+ f1(HIGH); |
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+ f1(LOW); |
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+} |
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+{{/code}} |
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+ |
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+{{code language="none" title="Upload log"}} |
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+Configuring upload protocol... |
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+AVAILABLE: espota, esptool |
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+CURRENT: upload_protocol = esptool |
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+Looking for upload port... |
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+Auto-detected: /dev/ttyUSB0 |
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+Uploading .pio/build/nodemcuv2/firmware.bin |
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+esptool.py v2.8 |
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+Serial port /dev/ttyUSB0 |
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+Connecting.... |
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+Chip is ESP8266EX |
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+Features: WiFi |
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+Crystal is 26MHz |
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+MAC: AA:BB:CC:DD:EE:FF |
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+Uploading stub... |
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+Running stub... |
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+Stub running... |
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+Configuring flash size... |
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+Auto-detected Flash size: 4MB |
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+Compressed 269888 bytes to 199316... |
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+ |
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+Writing at 0x00000000... (7 %) |
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+Writing at 0x00004000... (15 %) |
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+Writing at 0x00008000... (23 %) |
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+Writing at 0x0000c000... (30 %) |
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+Writing at 0x00010000... (38 %) |
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+Writing at 0x00014000... (46 %) |
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+Writing at 0x00018000... (53 %) |
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+Writing at 0x0001c000... (61 %) |
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+Writing at 0x00020000... (69 %) |
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+Writing at 0x00024000... (76 %) |
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+Writing at 0x00028000... (84 %) |
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+Writing at 0x0002c000... (92 %) |
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+Writing at 0x00030000... (100 %) |
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+Wrote 269888 bytes (199316 compressed) at 0x00000000 in 17.6 seconds (effective 122.6 kbit/s)... |
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+Hash of data verified. |
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+ |
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+Leaving... |
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+Hard resetting via RTS pin... |
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+{{/code}} |
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+ |
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+{{gallery}} |
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+image:front.jpg |
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+ |
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+image:back.jpg |
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+{{/gallery}} |
