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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)
: X! g4 |0 i, G: O: j. u- #include <ESP8266HTTPClient.h>6 h. T" t4 m/ c+ `
- #include <ESP8266WiFi.h>
6 A9 Q" m# q( n/ p - #include <ESP8266WiFiMulti.h>. r6 I* E2 k% D4 m
- #include <ESP8266WebServer.h>$ q. `; G8 q0 a1 h- ]) Z. t* q
- #include <arduino.h>! D0 A: l7 {, w# m3 B
- ESP8266WiFiMulti WiFiMulti;
+ v2 J" [9 m2 `2 I. Z) z3 X - ESP8266WebServer server(80);
- w* J# @5 _, `2 @: {9 X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' z% w6 @1 q+ D2 H; U
- ADC_MODE(ADC_VCC);
& Y4 I+ t. ]) q! Z. c - void setup() {
( F5 c/ E3 O3 N0 Q; W5 e7 n3 z - Serial.begin(115200);! U: e: L" V+ e( f/ e, c
- Serial.print("\r\n\n");
" j+ j3 S. ~# c& G' N( M0 j% r1 ` - pinMode(2,OUTPUT);
- T q" [4 F. ? - // WIFI
0 J" p3 @: E8 j; F. y" a - WiFi.mode(WIFI_STA);
# r+ E1 `; C8 f) O0 J# `$ S% I$ ^ - WiFi.hostname("Sparkle");
l2 z, }. X+ o; D- ]4 X! _3 Q; c - WiFiMulti.addAP("wifi ssid", "wifi password");
) V* U7 K% u8 p2 w - int tryNum = 15;) s) m! X% r$ t' z0 @
- Serial.print("Connect WiFi");
9 }& c, T; u m8 D/ F( j4 o7 |6 J - while (WiFiMulti.run() != WL_CONNECTED) {1 @: z$ G' \, ~
- digitalWrite(2,0);
$ ^0 {% b& f3 t) }9 \ {: S D5 B" E! K - delay(200);
4 |- l; z; n, A" g6 T" s s- \ - digitalWrite(2,1);
! `- J% S* m h - delay(300);
8 G) ]" F$ }& V - Serial.print(".");
" v: F1 c8 \" j' b: D+ O - tryNum--;
2 e& M$ s! _: I& K7 I- z - if (tryNum == 0) {" o* S9 [: \. t- B" D) x
- // 1min3 G2 W+ h5 F2 D! w
- // ESP.deepSleep(60e6);& f, Y% b. ~6 ?5 E- E/ V6 _2 X
- ESP.deepSleep(0);$ x4 {: A i" B" z9 |+ U. h* n
- }% Z/ L$ i2 n0 T$ U
- }+ {: C% N; W6 Y% P0 w
- Serial.print("\r\n");- ^& f5 A- |" O2 c- E
- digitalWrite(2,1);
8 H5 G8 w5 p% s. a" ? `' i6 ^ - Serial.print("IP address : ");
* [: y3 x6 Y0 h - Serial.println(WiFi.localIP());
6 l$ ]( m# b5 M - server.on("/", HTTP_GET, [](){3 l& q% o/ Z6 v& B( t" R
- server.sendHeader("Connection", "close");
' J1 Y( y: a% D3 g( F - server.send(200, "text/html", serverIndex);
" i, C/ l7 W8 F) L1 ? F! x - });. z( n x- U6 {; a. j6 s; `
- server.on("/update", HTTP_POST, [](){) z% o7 u" ]* n6 u/ k; @. z
- server.sendHeader("Connection", "close");
/ y/ N! D, G5 u4 |8 e5 Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ c( i, u; ^2 H0 {3 i6 O5 \
- ESP.restart();
. d- n# y3 [. ?( |& ^ - },[](){+ Q: D+ e" `! _9 G0 K1 w
- HTTPUpload& upload = server.upload();0 x3 m& N. E- {& G* ]
- if(upload.status == UPLOAD_FILE_START){6 [% [( Z4 v, W9 o. U
- Serial.setDebugOutput(true);+ V2 o6 j" K8 s+ Y' Y. w
- Serial.printf("Update: %s\n", upload.filename.c_str());! a" G# k$ {2 Q" L. T7 F0 f9 r5 p
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
F' {" D) d' U; i& U - if(!Update.begin(maxSketchSpace)){
) h' @4 K# p: L0 B% t) I- F$ { - Update.printError(Serial);0 ^6 @4 N1 H! `6 R
- }8 H# y/ r9 V: ^" y" N
- } else if(upload.status == UPLOAD_FILE_WRITE){4 H! J& }0 }+ }9 F" v/ B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* g' p# x( [! W1 W( b, p" B6 U5 W
- Update.printError(Serial);
! o( @1 c; Y$ ?- R k - }/ e5 F1 }, h! O& @. J; Z
- } else if(upload.status == UPLOAD_FILE_END){
8 ^0 h3 Z2 D3 o+ C, Q, y; P1 n1 A - if(Update.end(true)){
) r; I- H x4 Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 p9 m; Z4 N9 B. A. W5 o+ _ - } else {
; Y' A: v0 ^; w - Update.printError(Serial);
( g3 s0 g0 G/ z9 F; E# v. z* E O - }
! B5 {/ x Y' y3 B - Serial.setDebugOutput(false);
5 e& U* [" ^$ Q }# |0 f# S - }! b+ r: V* c4 R9 `
- yield();
0 d1 m& }# q) B( ]: D- K; I - });( v2 ?7 ~) v- L' Q3 V5 S
- 7 ?8 c; S$ A* B- R( _7 x- n
- digitalWrite(2,0);
9 W2 v. u# A6 I - mainAction();
+ l1 l. d: d1 j* h$ L. e6 M - if (digitalRead(0)){
1 ]2 ]( m1 p: E- Q5 U4 f2 x% v+ A - ESP.deepSleep(0);
9 g7 V! ?4 Q, P. e: j - } else {
4 u* g- {4 \8 s ]6 Y6 ~- | - server.begin();
: H/ i3 C2 R, N - }
6 ?2 e% s$ {6 d6 o* }* G - }$ }2 i( w& P5 B$ x5 l5 k
- void loop() {
; h( T. t, R. y/ z7 ~ - server.handleClient();# S% V* ?# d6 `5 L; v$ S5 `
- delay(1);, i2 G. \/ M* z- r- J& A5 M- o8 C, X
- }# B$ Z0 t3 a2 v: v7 R/ n, E
- String doGet(String url){: M# o; a" D H9 I+ G0 b4 A; V
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 d1 O5 { a U - HTTPClient http;
! d4 ]& S. r. {- y4 `& @ - Serial.println("[HTTP] begin...");' L( y, {3 b+ C2 J/ Z! _9 ^
- if (url.startsWith("https")) {6 n2 \/ U6 t5 D! i9 J
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 L+ w' h( }& N* Z. I
- } else {, p/ d x5 Z1 J5 q: Y( R
- http.begin(url);
! {9 o( f# s6 b( f/ ?6 Q - }
0 r6 q" S5 J+ i9 h1 @- F - Serial.println("[HTTP] GET...");! ]- ^, ~- C5 n& ]: Y: q2 [1 X/ o
- int httpCode = http.GET();) N4 _; Y4 X/ c
- if (httpCode > 0) {1 l3 w/ ?4 Q0 N% T: A$ g* u0 d
- Serial.printf("[HTTP] code: %d\n", httpCode); k9 ]4 i6 H" z9 E. Q
- if (httpCode == HTTP_CODE_OK) {) h7 O, z0 D+ j, _& x1 z/ V5 Y- w
- String payload = http.getString();
) u( `3 g2 g' k" _ - Serial.println(payload);
% T; S+ b% Z+ @3 s - Serial.print("\r\n");7 [1 l W {) Z, P, P" p
- return payload;
" x& ~5 e4 e- f$ K" x - }
7 x! a4 c* S8 e( e1 C/ x2 D' |" `8 o8 J - } else {1 K5 q8 o8 U( N$ [
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; o9 O+ z2 n; t# j% J! w5 w; h2 Y - http.errorToString(httpCode).c_str());$ Q6 S+ I% K# H' N: p* |( X) e
- }
& g w# @( ^1 I: {6 J4 ]+ G" E# m - http.end();
% l& `0 M+ Q- P. M( L - return "";/ d) c+ \0 T6 E2 X% n
- }. ~# {' K# F( s
- }1 s% @# d* V3 g* D3 h6 L' G
- void mainAction() {
6 H. o' h& I( J7 U/ e/ k - // 发送请求
. d. d4 s5 N- T, e& R5 n. C0 j - doGet("http://google.cn");
& ~8 e$ A8 t) Z, A. @0 o2 O - }
4 d. m8 a8 R0 e$ W5 }' G* R
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