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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)
1 k3 Y6 [/ |. _1 X' M) x; h- #include <ESP8266HTTPClient.h># b5 _- ? t/ u% S% q; c
- #include <ESP8266WiFi.h>, ^, v7 H! U& P, d- s: I
- #include <ESP8266WiFiMulti.h>
8 H, X ?: h+ |8 x4 X - #include <ESP8266WebServer.h>
$ ] u5 Q4 K: A8 m - #include <arduino.h>0 K$ W1 n4 G0 f! V
- ESP8266WiFiMulti WiFiMulti;0 ?" H+ f3 C* F, ]% j9 I
- ESP8266WebServer server(80);
' d( E3 J" P& L( E; c+ a8 X6 _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 n Q4 f- M- H" m
- ADC_MODE(ADC_VCC);
! B. E3 l! l6 h2 E4 Y/ V6 J - void setup() {! o4 D$ Y+ f1 m1 R
- Serial.begin(115200);( d8 ~/ F! q8 O* V6 z6 h
- Serial.print("\r\n\n");
1 F" J$ ~! s1 v% J: E - pinMode(2,OUTPUT);
- s1 ?4 K+ F; t( X# }2 | - // WIFI
: |" g5 K9 L1 u7 X - WiFi.mode(WIFI_STA);6 W) G/ i2 C8 `- ]3 z5 \
- WiFi.hostname("Sparkle");. h K2 z$ G/ b' q4 k
- WiFiMulti.addAP("wifi ssid", "wifi password");
# p( { p) y6 g% P8 } - int tryNum = 15;
) Z. j$ t2 R/ s3 B. h" Y - Serial.print("Connect WiFi");$ u7 u7 c/ _% U8 C! j' U; b5 G
- while (WiFiMulti.run() != WL_CONNECTED) {8 m0 [; N) C$ @8 j
- digitalWrite(2,0);
% k# g; g5 c d V7 R3 l1 v - delay(200);
2 r6 E( e1 M; e8 u M - digitalWrite(2,1);8 l" Q0 k! x% O0 E5 ]( F
- delay(300);
6 R! C: T) e& j+ j. X5 n - Serial.print(".");
5 U4 k8 [) {8 c5 I7 l' k - tryNum--;
$ z3 o& ^) P3 t8 x e$ m$ J - if (tryNum == 0) {
4 y4 J2 K- g4 @3 M- i! \ - // 1min
" f2 E i1 V5 A' r% R - // ESP.deepSleep(60e6);0 a3 {; i" j: [; o P% d! U; F
- ESP.deepSleep(0);
- N+ I# A. z/ J( e0 F- r0 k+ Q - }
I& k: [ o4 S% ` - }4 f @" I& S2 p y7 y- |
- Serial.print("\r\n");
9 w6 q, W& ~ W) Q7 [ - digitalWrite(2,1);
3 O, e. ]9 T8 E7 N - Serial.print("IP address : ");
6 s7 W" B+ H: b1 x$ e - Serial.println(WiFi.localIP());
; F! O+ I/ @- N* ^0 R - server.on("/", HTTP_GET, [](){
5 O% _; r' E* j/ ~/ z - server.sendHeader("Connection", "close");
, c! M; M/ ~0 d1 g - server.send(200, "text/html", serverIndex);: D: B2 y$ O1 f( H7 g
- });
& @, z1 U' p0 k- d8 ^ - server.on("/update", HTTP_POST, [](){3 {3 Z; Y) }" @! b! }% t
- server.sendHeader("Connection", "close");
8 ~. o( M& v1 { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' e4 W# O, v" }4 ^5 T& F
- ESP.restart();9 ~0 b7 s0 A# L9 m
- },[](){7 L1 e% u$ }& k. Y' Y2 L
- HTTPUpload& upload = server.upload();
( V: G3 a+ j5 u: _; P! ` - if(upload.status == UPLOAD_FILE_START){. ]2 h+ I+ C) O
- Serial.setDebugOutput(true);; f! Q5 @3 h5 j! b8 s3 a' E& Q4 `
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 S& f! V: O% U+ Y$ G - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 Z* e. b) Z8 |1 p* n& m+ m - if(!Update.begin(maxSketchSpace)){+ g3 v' ?4 G, ^7 W2 `' d7 ?
- Update.printError(Serial);
* f8 k* r. ]1 O) s4 X7 F2 [9 e- M2 C& b - }. N# C: p: M* z' C {5 h" }2 i
- } else if(upload.status == UPLOAD_FILE_WRITE){
! [* X' \9 z& Y+ D* @ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ \ r0 i) }8 M+ N& z - Update.printError(Serial);5 t5 |7 n! n+ {9 _" {! J
- }
, w5 ? F( @+ o - } else if(upload.status == UPLOAD_FILE_END){4 ]4 b3 m+ H2 `5 d6 ]( c
- if(Update.end(true)){* j% Z; \/ R5 A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ D1 a( Q; q: t; C- b3 Y) W8 u - } else {
6 G1 E( K( Z4 {- g - Update.printError(Serial);. @/ F1 M4 I! X% _" u# L# T
- }+ H! K- n! m$ _& |' y
- Serial.setDebugOutput(false);2 Q5 Q8 h( s! J$ C! b# Z. R
- }, u+ |& N- \. A. c) L, z9 c9 j) P
- yield();
; ~; N" c; F+ j - });
6 n9 K/ b/ q' a. d+ z3 E4 x -
3 e. e1 Y) @8 x' |, ` - digitalWrite(2,0);6 e5 c! W% c* s- x A+ Y' @
- mainAction();
0 L( W* f% R# o" Q - if (digitalRead(0)){ C2 \. [, J; c# z
- ESP.deepSleep(0);2 u5 l6 ]/ L R1 ]! [/ t- Z
- } else {
' P# P w! E+ r* w( i4 f$ q - server.begin();
/ G9 x( j$ d/ A$ l" t - }/ i" `; T' K5 z Z/ c' A
- }' x9 J% L$ J! t: S9 [# E$ c
- void loop() {0 S( O5 ?: @- r5 L; J/ W
- server.handleClient();
" k$ w8 v/ J: r/ c3 J% {% } - delay(1);
* r2 b6 \ {8 o# c) a - }' z! s3 ?0 `* A" x, y
- String doGet(String url){
: _ P6 m9 Q/ x+ v$ z$ P" }# { - if ((WiFiMulti.run() == WL_CONNECTED)) {
# \( ]5 E) D9 ~4 D* `9 D9 H6 d - HTTPClient http;0 t. u9 Y5 U: F0 I8 i
- Serial.println("[HTTP] begin...");! s- s- U3 Z: b7 `+ f
- if (url.startsWith("https")) {
) Z$ B- v* Z( G7 ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ A m1 q ^; B - } else {
1 G4 Q& H+ m; C: a* e' ^9 N# n0 a - http.begin(url);
$ d9 ?* d# u$ t7 j - }- Q6 E9 ?% f8 E! m/ W) V# M
- Serial.println("[HTTP] GET...");
* Y; ?; F- j, ? - int httpCode = http.GET();& W9 I/ A& w; ]1 g! E7 Y* W& _
- if (httpCode > 0) {! m; p- h3 I: ?
- Serial.printf("[HTTP] code: %d\n", httpCode);" \! |+ V y- U: L/ R, d9 D
- if (httpCode == HTTP_CODE_OK) {1 j% o4 E& y: x( @- e
- String payload = http.getString();
9 ?; t8 z5 W( O - Serial.println(payload); b8 p; ]" S- S& x6 H: v; [) B7 G6 x
- Serial.print("\r\n");
$ U# x6 v/ c5 R/ R+ W8 j0 A - return payload;
: Q m2 Y1 j0 f, f( R+ j0 O - }
* G4 f5 j S s - } else {
: T' l' P" B" v7 N - Serial.printf("[HTTP] GET... failed, error: %s\n",* B# P0 j- X. s4 x) d, g& a
- http.errorToString(httpCode).c_str());- s; o. L" B1 X
- }+ E8 O4 I% M% N" Y% B5 s
- http.end();
$ b) L6 p) ?9 Q; [ - return "";) i# i4 x% w5 [1 b# V
- }
7 M$ ?5 ]( v: } - }$ V6 h7 }# I" c3 d$ Y. f
- void mainAction() {. C9 W W* [$ e" {: [- w# |" o/ |
- // 发送请求
1 B" K$ Y: W0 `! } - doGet("http://google.cn");! m; _$ n, T2 ~0 h" `- S* ~1 a
- }" c1 p, I3 Q4 s$ N! I) d( o
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