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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)9 Y0 n* Q( O& z5 E2 i; } b/ Y
- #include <ESP8266HTTPClient.h>% ^# S" c6 r; U& R# [
- #include <ESP8266WiFi.h>
! \ h$ m3 b" D0 ]# _! C$ H, c# [. e7 o - #include <ESP8266WiFiMulti.h>1 P- p* D5 D6 j9 U$ d0 w
- #include <ESP8266WebServer.h>
4 R$ }$ U8 t ]6 u; \ - #include <arduino.h>
; l! C. L! M, j6 t# f - ESP8266WiFiMulti WiFiMulti;
2 o" r2 j% M, u$ Z# e - ESP8266WebServer server(80);" T! H- D/ }2 l( [' c9 I+ j+ F
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" R9 q" S) B8 n8 J$ R9 s9 P
- ADC_MODE(ADC_VCC);
3 }5 ~4 f1 A! q5 M% i w - void setup() {+ W" U' u- z- l' X1 S
- Serial.begin(115200);+ Z9 Y4 T c1 }: q' X7 P
- Serial.print("\r\n\n");
! b( V7 s+ D R8 _ - pinMode(2,OUTPUT);
) o, |: Q# h) U4 p3 B - // WIFI8 ]$ h2 Y- r v, S8 a
- WiFi.mode(WIFI_STA);) v: G( p5 [3 C+ W" Q( Z( }" I5 s- o
- WiFi.hostname("Sparkle");, e: Y) g# F( A+ I" c
- WiFiMulti.addAP("wifi ssid", "wifi password");) b" G q; B ]( C W! k$ {
- int tryNum = 15;
+ N5 T7 K1 q7 O& I - Serial.print("Connect WiFi");
& e/ D8 y! X9 a, ~5 I4 _9 d - while (WiFiMulti.run() != WL_CONNECTED) {9 E! b4 z, F; G3 o# I C! v2 E
- digitalWrite(2,0);( y. }& A2 p6 \; V! ?& I
- delay(200);: }/ I2 _, c1 h% b1 N) v2 m
- digitalWrite(2,1);
! v5 o8 y1 b* _9 J: N; F0 k1 r - delay(300);3 z8 c( K/ V- Q" Q
- Serial.print(".");
. N* G- z: f% _4 i8 I9 Y6 j - tryNum--;
3 d4 o) ]/ f6 L' h) F6 C6 N4 y1 |/ b - if (tryNum == 0) {
% c. E; Y8 {. i% H0 p% E6 i8 v4 j3 U - // 1min% X R4 [7 q/ d8 y: ]( L( ?
- // ESP.deepSleep(60e6);% O" h; ?5 g: s+ s& k! W
- ESP.deepSleep(0);
5 O/ h, Q' d$ D/ R) N* _ - }/ m3 S& V7 _7 t
- }
( {6 z0 `. p, n; h* y6 n, g" O - Serial.print("\r\n");$ s* v4 i; y" W1 h
- digitalWrite(2,1);
, R1 j! ~# y* u - Serial.print("IP address : ");% M8 Y4 E8 B F- n8 _5 X+ V4 X. U
- Serial.println(WiFi.localIP());$ E' A" |% E( U& j- G3 A
- server.on("/", HTTP_GET, [](){3 O* p; z2 W6 b: l& R* C
- server.sendHeader("Connection", "close");5 W! H# C' j7 k0 m
- server.send(200, "text/html", serverIndex);
+ u/ j& g; ~, i& { - });1 S" n7 N# [, ?: U5 f
- server.on("/update", HTTP_POST, [](){' R3 [; e+ y2 l+ {7 t
- server.sendHeader("Connection", "close");
4 i P8 v( V) [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( v6 L4 j0 \. X! ~2 e
- ESP.restart();
; z9 v* o* H: L. E- O+ t - },[](){7 k' ~% d( o4 Z" ~: A
- HTTPUpload& upload = server.upload();
; s% [! n9 r) |: r& { - if(upload.status == UPLOAD_FILE_START){; D" [6 F% l9 V
- Serial.setDebugOutput(true);4 d& @( l) j; _$ z7 ^& z* D7 U
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ k5 R0 m9 Z" q! P% M" S - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% u8 O& ^9 g9 ~, D7 Z6 c - if(!Update.begin(maxSketchSpace)){
( x4 ^8 Y' l& Z5 O - Update.printError(Serial);- e+ q. O" e- O
- }
d0 L$ _# X$ l - } else if(upload.status == UPLOAD_FILE_WRITE){) S7 X2 q: s ]. G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: T2 P. m8 f/ H. f0 U; u
- Update.printError(Serial);* [* ~# Z7 w! ~" o% `
- }8 W, y6 ]/ d5 G0 k- c- b. f
- } else if(upload.status == UPLOAD_FILE_END){
; G' t- }5 i9 t" T; C - if(Update.end(true)){5 p2 F9 Q0 ^2 e) }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 V+ R: d: W7 P0 j. w3 `2 J - } else {
! s/ `4 Q5 k8 B% }+ v7 w - Update.printError(Serial);
: Q' Y+ `6 `. l8 A# v5 m6 d- V - }
8 s$ i1 @3 A: Y# W8 \8 q8 Z4 `5 \4 j - Serial.setDebugOutput(false);% \ J! J7 W) w& y4 e+ D
- }; R- W( Y6 q3 ~+ ~+ |
- yield();+ d+ R1 ?' Z3 [8 \1 a6 h4 t( v
- });8 v# v3 G, s1 D6 k
-
+ s: b/ D( i4 _; X9 t5 g( n4 Q - digitalWrite(2,0);
- O+ T2 M; }7 ~2 j - mainAction();+ e R/ |' M# `; _7 u3 p( ~4 {
- if (digitalRead(0)){
9 @- L; P* Q7 p: Q: Y" V1 I, u - ESP.deepSleep(0);
4 Z. Q' |( l6 \7 r1 P - } else {7 G& B. l" c Y: K! r3 t s
- server.begin();% c: a; n4 K6 z$ ~9 k% ]
- }9 R4 ~. c7 B+ o) y$ q
- }
* b5 t; k0 ^9 F! ?. i - void loop() {# H& F! w: Y2 V, @
- server.handleClient();; a( Z+ u9 j" O
- delay(1);
& J: Q$ K8 ?8 |% t- K' C - }
/ Y) p& H3 b5 r2 E/ ]; h4 } - String doGet(String url){7 u, B0 z$ t# ~+ x5 L% a7 E
- if ((WiFiMulti.run() == WL_CONNECTED)) {- u, r+ _! R: F( L" ~
- HTTPClient http;3 v% @$ x4 P( g& {
- Serial.println("[HTTP] begin...");- u, @. _( S6 n3 r" a4 o
- if (url.startsWith("https")) {
. C, J1 K8 t! B* d' L - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 w' @/ b/ Y) [
- } else {0 _; ^4 W2 e% a/ z1 Z5 m1 K
- http.begin(url);% d/ ]+ S6 T9 |# Q& i* G( Y. w/ e
- }
3 j: o+ B7 a+ C; k - Serial.println("[HTTP] GET...");
; {8 \) m7 e7 f" S7 s0 B4 e: T - int httpCode = http.GET();0 r& g; o' w5 m
- if (httpCode > 0) {
8 v# R4 @/ r% v. B2 q - Serial.printf("[HTTP] code: %d\n", httpCode);' Q/ ~1 _, ]5 C) Z
- if (httpCode == HTTP_CODE_OK) {. `$ }% t" _/ K7 h, P9 @& W; q
- String payload = http.getString();
: e' ?# c7 O( ^ - Serial.println(payload);' N; \- x7 G% ^3 p6 l1 B- o
- Serial.print("\r\n");( }/ R1 g/ |" N! z2 v) m9 L& y4 z
- return payload;/ L* N( {9 _$ w( n
- }
: E7 u. f6 ?& | - } else {! c, i+ @% }) F' |
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 _/ V; |$ m. P% C) ] - http.errorToString(httpCode).c_str());
3 }% R' ]5 G4 N% _0 K - }) f, s; r$ u- F R& |( z
- http.end();
4 L/ ~" E6 u w4 W2 k+ H) Y - return "";- c9 D( E' ~& g% [7 U6 T
- }
+ O* B9 B/ V* [% K - }2 E. \( i* a! h8 V) ?$ s: L
- void mainAction() {8 f1 X+ ]' O1 A! y* p% m' Z
- // 发送请求% m3 @5 d% {7 M6 g
- doGet("http://google.cn");
: l# f5 w( G$ F* A6 W X - }% e& K# p" Z$ f+ E
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