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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)
3 b2 z! I( `% B' K6 J( g5 g6 ^- #include <ESP8266HTTPClient.h>
! |3 V6 [2 n9 H/ ?& C. e3 M - #include <ESP8266WiFi.h>$ \/ P/ R% _7 v! B; R' r
- #include <ESP8266WiFiMulti.h>
6 b- P9 T% f. V5 {6 O$ e& } - #include <ESP8266WebServer.h>
: W! Y) j/ \' ~8 n D - #include <arduino.h>
/ w+ L# ?0 t' j5 k - ESP8266WiFiMulti WiFiMulti;
: ]+ b& `* e' A9 N1 D8 B( d - ESP8266WebServer server(80);6 |) Q& @1 o2 A8 p; T# E# f2 U
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 C. c; u# s6 f# I9 e B) H" J - ADC_MODE(ADC_VCC);
2 ^6 ]* i( q) |' } - void setup() {
m6 Y. _+ t0 ]' J. M% B: L: v - Serial.begin(115200);
6 J" v: K7 k3 } - Serial.print("\r\n\n");$ y3 B4 O: O5 j& w! I
- pinMode(2,OUTPUT);
' S; ]6 P# k* f# H3 b5 i - // WIFI! H/ l/ b, l! V) T$ d5 k
- WiFi.mode(WIFI_STA);
0 ?$ p1 I7 k6 v3 G% B/ ~ - WiFi.hostname("Sparkle");1 m' ^" y+ `5 e( I8 G8 n
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ w: m! F8 g- e5 \" |6 f4 E8 n - int tryNum = 15;
5 G' B. S, h* n9 n( ]5 g - Serial.print("Connect WiFi");; O4 p6 |9 `. R# V2 _ n, e
- while (WiFiMulti.run() != WL_CONNECTED) {9 _* T- G4 b) T' G
- digitalWrite(2,0);
( c& k; M+ @( h& ?- [ - delay(200);
4 B; N' X% K7 s- S" g4 L3 f5 N - digitalWrite(2,1);+ M3 ~! P& }' }7 o2 r! @0 r
- delay(300);
+ k8 g9 a' w0 I - Serial.print(".");( O% ]1 k& f. s* y
- tryNum--;6 q- L* T. `0 J2 V
- if (tryNum == 0) {- L' d: d( \" v2 F. L( R* s. M
- // 1min
4 h5 c1 U" x% q+ x9 n6 C - // ESP.deepSleep(60e6);: F6 R4 v" m, M& t t
- ESP.deepSleep(0);+ e6 i9 l0 W9 _0 \+ |
- }
3 G1 `; ` j+ D" Y- T - }7 X; K! r% \6 B# p' e
- Serial.print("\r\n");; {1 k/ T3 L0 V. k2 s4 A/ V8 p) v
- digitalWrite(2,1);
, U( P$ ~3 h# @8 a - Serial.print("IP address : ");
" J Q4 P* `; B5 E" a' Z* H$ @ - Serial.println(WiFi.localIP());) e* a0 c. j* b6 z! _
- server.on("/", HTTP_GET, [](){: U& \' q% Z+ J/ o
- server.sendHeader("Connection", "close");* k$ U: a4 N( S# P
- server.send(200, "text/html", serverIndex);* y2 c( D8 r8 v7 `+ Y) h
- });
7 _; f5 t |# W% Z) a& E - server.on("/update", HTTP_POST, [](){
& h4 d2 d n* U6 `5 ~. u. f - server.sendHeader("Connection", "close");4 k3 d# s0 h$ l0 i) ]2 z: Z) m
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 Q: |8 K0 j3 J4 ?, }
- ESP.restart();
& j7 f+ S' f3 U: y( l4 L+ a - },[](){
Y) @3 K$ d9 W9 M. T - HTTPUpload& upload = server.upload();0 h3 e# E6 W+ ~1 J# l
- if(upload.status == UPLOAD_FILE_START){$ E; Q' R" B2 g: X% H' i
- Serial.setDebugOutput(true);
: T C0 e3 V. r" K0 s2 ? - Serial.printf("Update: %s\n", upload.filename.c_str());/ q8 \" E1 i) T. P& g
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 n1 ^5 g6 B5 P2 g% z
- if(!Update.begin(maxSketchSpace)){, N% O6 O% W$ u) Y2 G
- Update.printError(Serial);
( p4 G; g) E0 S1 O y; Q& k - }5 ^( e+ {* y$ C( b5 M' a. n; ]6 j
- } else if(upload.status == UPLOAD_FILE_WRITE){5 X. X! ~3 H) l/ [( Q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; |' ?+ y. t: {5 G) y
- Update.printError(Serial);
- |( H+ |. D$ O: Z - }. m4 F( p3 G8 m3 I+ V
- } else if(upload.status == UPLOAD_FILE_END){4 [; ]0 R3 S) v$ e
- if(Update.end(true)){: S, P( _- w! C) F
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. \1 G( B ]& ^9 K% k
- } else {
5 R7 Z$ d( N' R6 } - Update.printError(Serial);
' I5 q4 }* ^6 Y. O Z - }
0 C2 z' o6 ~6 e2 P2 s - Serial.setDebugOutput(false);& f& ? d% J. w% ^! ?9 K! C
- }/ L7 P2 X2 s/ @4 K" W0 u( Z: L. C
- yield();
8 V# v+ o% `9 q3 R; K - });- p7 Y; V' }! ?/ C! B
-
& S( n" N. W( }& o4 \$ i% u, n - digitalWrite(2,0);5 p* Y1 [" q( F2 B9 g/ U
- mainAction();
( O0 a. L9 X" `; E - if (digitalRead(0)){
1 {0 L1 S7 y% }. ~) K. c- d - ESP.deepSleep(0);: N+ u5 [, _2 a9 z- ^
- } else {
( i0 ^* X$ ]: u2 o* t1 D - server.begin();+ s9 A- x B6 w
- }
3 h# Y5 M; x% P - }
! B: o6 T8 u9 u. e - void loop() {
0 g9 b: E g9 g4 f7 a - server.handleClient();3 U/ g1 E- r+ T# M i! r
- delay(1);% I8 P' ~4 |) U- H2 k" R
- }# x) h8 b }. i) w
- String doGet(String url){
; k7 X- A( G- i! U' f - if ((WiFiMulti.run() == WL_CONNECTED)) {
; z, @# z- }1 M0 P( U7 Z6 Y - HTTPClient http;
; E1 d8 _; F R' a/ Z0 y8 K - Serial.println("[HTTP] begin...");
! X% \6 P8 Q' @! Q, z - if (url.startsWith("https")) {
/ U7 q7 W" a* x5 z$ G - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 j7 `7 n1 E( a" ] x1 o8 V) f7 k
- } else {" [9 N, x7 L% j$ v6 |
- http.begin(url);
" }" X- f, a7 |+ j - }
% {; }0 n% j5 V1 z* y9 f' ?3 ] - Serial.println("[HTTP] GET...");
: p& I' R: b- M4 ^1 r- P - int httpCode = http.GET();/ X% ~8 e! D: E) F# d
- if (httpCode > 0) {0 w. v6 f' d& {0 s2 w7 }* C+ b; m
- Serial.printf("[HTTP] code: %d\n", httpCode);0 c; K0 ]4 F( |! T: @4 G% x
- if (httpCode == HTTP_CODE_OK) {
4 L. x X$ g! _ - String payload = http.getString();# T+ C' r3 \& X8 K
- Serial.println(payload);7 Z: i& ^; } }! r/ @& u
- Serial.print("\r\n");+ L; j2 { |, {# Y+ k
- return payload;1 o) {# k* y* V0 s2 O6 p
- } r# w, w5 }! ~. y' j/ F
- } else {
( T% S% s+ L' \: f- _ - Serial.printf("[HTTP] GET... failed, error: %s\n",: k* y. p; ^* U4 Z% v. v
- http.errorToString(httpCode).c_str());
1 I' Z/ N" F- J3 O - }
2 K) ]2 z2 n( _$ Y( f6 P1 _ - http.end();! ?, T x: {6 N# S: v1 t
- return ""; `6 t" m) T4 E1 _0 f. K% m+ u
- }. y8 ]& B( t4 d7 {: [, W. R
- }
9 @# ?4 G$ i4 f7 b0 n* S# D - void mainAction() {
, C& K- y& g3 Q - // 发送请求
1 t4 h$ o2 T# Q; E( [, d - doGet("http://google.cn");
m# |# [/ n0 K5 R; E& a4 {) X0 B - }# q# V# Y$ x7 t4 J+ k" W
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