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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)
0 Q& A9 r; \# z& K. E+ U- #include <ESP8266HTTPClient.h>4 h* K2 M' y6 ]. w; d
- #include <ESP8266WiFi.h>
- h% f: \) \+ K - #include <ESP8266WiFiMulti.h>/ f" ~* |! H0 }% t& L* a9 o
- #include <ESP8266WebServer.h>+ X) Z+ H) L/ j: I
- #include <arduino.h>
( o9 C- B8 `- W: y: x/ g: S - ESP8266WiFiMulti WiFiMulti;) `4 e! F) }+ d/ Y1 G
- ESP8266WebServer server(80);2 T2 Y5 G5 s; ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. i+ R/ U( }/ O1 a6 D- o+ u$ N* z# Y
- ADC_MODE(ADC_VCC);3 [# R* m/ a+ V) w
- void setup() {
( a' S4 |9 B. c+ p( s, G3 u - Serial.begin(115200);
. n( d8 \/ `3 ~4 L- y9 ~- w. b, ~4 O - Serial.print("\r\n\n");+ U4 j( b7 N K+ b8 f- b* R
- pinMode(2,OUTPUT);5 J: R: `! f0 h" c7 I
- // WIFI- d6 t9 q; b! w' v# B. R4 V8 [
- WiFi.mode(WIFI_STA);
& Y! _2 l' z5 S: i# b - WiFi.hostname("Sparkle");1 |$ S# w3 I! U6 |
- WiFiMulti.addAP("wifi ssid", "wifi password");
# d- e& b3 h$ _5 \) s, B1 @' r9 r - int tryNum = 15;
& s" B1 c. E9 o1 V1 C - Serial.print("Connect WiFi");
. p- s& a3 H% O7 Q1 p- H# R4 t. T - while (WiFiMulti.run() != WL_CONNECTED) {
6 S, j& `, z& K$ M0 ~ - digitalWrite(2,0);+ j3 _. s$ |) @2 I6 S1 [: i
- delay(200);
. ~- y1 z+ z6 |; I$ v# \ - digitalWrite(2,1);
' R1 H2 u5 @% K7 t8 e/ Y: Y7 w$ e - delay(300);; d$ {/ l$ E4 t; v( Z
- Serial.print(".");
* j1 a) b# C4 U9 _4 R1 U/ x - tryNum--;
0 {7 @; X. \. U7 p# c0 W5 B - if (tryNum == 0) {
; A, S) ~" k: _6 t - // 1min
1 W* }) t+ V! w/ K0 t4 M1 q - // ESP.deepSleep(60e6);' p& _3 i+ V2 k# O# [" I3 n9 k
- ESP.deepSleep(0);
0 K! y9 x5 x4 ]4 C5 v* s2 k. L- E2 a - }
$ ?0 S' k* ?# O. D0 _2 ^ - }
4 b4 ?6 i2 h6 S$ _. R/ k7 ? - Serial.print("\r\n");- E( \. U$ p6 U$ [2 v- P/ J, z" g2 K, B
- digitalWrite(2,1);
2 y4 e& @/ H) N. V7 _4 ?7 t" ?- ` - Serial.print("IP address : ");
5 K4 d' v0 F7 \9 N) B8 T/ m6 w - Serial.println(WiFi.localIP());. F: N' q u4 _# p3 w! f7 Z
- server.on("/", HTTP_GET, [](){7 Z% T4 M9 s7 y; w
- server.sendHeader("Connection", "close");
6 ^3 k* e3 Y, t. P* a8 y - server.send(200, "text/html", serverIndex);1 d7 O4 \# ?* b! K, z% Z" g
- });
& [6 v7 [# T* t$ r - server.on("/update", HTTP_POST, [](){
, _8 L" H% D# |) ]7 ^8 _% @" Z$ I - server.sendHeader("Connection", "close");7 e7 u) h1 @$ y) P2 W3 i
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- C# [* i9 x0 S J+ g# S8 R% w - ESP.restart();
7 a2 K" j' x' J" J - },[](){
, P1 j1 [# y8 W4 w4 f8 ~ - HTTPUpload& upload = server.upload();
) p5 ^: ^2 B. E; q t0 O - if(upload.status == UPLOAD_FILE_START){
6 C! W+ L. D! O& t( b - Serial.setDebugOutput(true);+ |; K. M6 {4 K2 I
- Serial.printf("Update: %s\n", upload.filename.c_str());
, _ l$ {5 M# H/ }0 f( u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ U: e8 ?+ P/ F; [* b
- if(!Update.begin(maxSketchSpace)){
& S2 v. m1 d6 i: B - Update.printError(Serial);3 n1 j* m- d2 Q5 }/ A- l9 n
- }
; ~/ U; T V/ p: b6 a. u+ Q - } else if(upload.status == UPLOAD_FILE_WRITE){" C/ j* J' B$ h% A- {
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" e% ~5 P7 h: y3 Y - Update.printError(Serial);
) v9 f q) u8 }) O7 J5 m - }
/ [9 O: F3 I9 o$ Q- F/ o2 W/ k7 v - } else if(upload.status == UPLOAD_FILE_END){
" I6 k" W" r+ d$ I t: {& m - if(Update.end(true)){9 y8 G4 f, n$ }4 J) X' \* A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 x2 {. D5 ?& a3 g- ~ - } else {
9 j5 h' Z( a2 o$ | - Update.printError(Serial);3 b' G5 @: D$ R0 @; q, u
- }
5 t1 N7 G8 o2 Y; Y" |2 O; Y - Serial.setDebugOutput(false);
* P% ?; C; R& u4 j) x) _" d - }
$ V9 ]2 \8 \1 u3 G3 y; f m - yield();+ T% D! ^+ C( Z9 I& H
- });) s- w0 r J$ Y4 g& d, w, L
- ! j# K6 h) g6 e5 p% G
- digitalWrite(2,0);
8 e( U9 f1 F+ e# \1 ~8 F - mainAction();- T6 \2 _/ A# [; N# H2 O, U
- if (digitalRead(0)){
( Z- [- ?( i/ R% W - ESP.deepSleep(0);
$ _9 }: V# s1 B: k# n - } else {
$ v6 _4 q! l' d' ^$ f+ e* E - server.begin();
7 D+ Y0 N9 q. Q. p+ \1 m, ^ - }; o! b1 p/ U$ i8 u6 q/ R
- }6 F- t% V+ H& W* P) ?
- void loop() {
. D8 B7 ?. ? O, T- ?* v - server.handleClient();
# f) D7 m$ m) J% s% X - delay(1);3 v; G4 ?9 U/ ~0 @# i4 t) Q
- }! Q9 E* l. e, c
- String doGet(String url){$ z3 x4 o! [1 L- m+ T
- if ((WiFiMulti.run() == WL_CONNECTED)) {. b1 t+ b. E( H! `; Q1 r; { D
- HTTPClient http;2 b" r1 _& z% n g" ^- }2 p8 a( {
- Serial.println("[HTTP] begin...");
7 X, O6 s4 A+ t& [) v' O8 U. M/ W \ - if (url.startsWith("https")) {" j& S8 F! b/ P& C# m8 N
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! @" W* Y1 r. a. y1 a0 N' h
- } else {
: E [" N* ]9 @$ W$ i: b - http.begin(url);
% H- v5 {* X; \3 z# \* L* T - }) f( w7 d4 N. Q, i7 A
- Serial.println("[HTTP] GET...");
% A: G3 j5 [' Q1 t - int httpCode = http.GET();3 G2 |# K# M- M' h
- if (httpCode > 0) {
: a9 b7 y7 V5 J0 i1 y& ?6 [) P2 T/ ~ - Serial.printf("[HTTP] code: %d\n", httpCode);+ s0 L6 D* Y) e% J. S
- if (httpCode == HTTP_CODE_OK) {
q. P1 x" z3 A& k6 f5 Q' L! @ - String payload = http.getString();
5 f8 ?3 l& T# V/ w - Serial.println(payload);$ {. x5 R- O+ e" o( l
- Serial.print("\r\n");' D' T+ C$ C/ a& S$ G0 U( F
- return payload;
6 q' X, w% k' L$ o0 |4 O+ ^" f - }
. @3 C3 v3 Q p - } else {: D$ [- p O- I6 G2 t
- Serial.printf("[HTTP] GET... failed, error: %s\n",# H, D% I2 j. y6 _
- http.errorToString(httpCode).c_str());
6 C c* o9 l9 @5 R - }- B% K9 k' ~2 N& P V/ X
- http.end();
5 r* k0 X/ m7 c - return "";2 e7 j1 k% l5 b$ J% d5 ]" s
- }; O6 b! j9 }7 m7 M$ i
- }; A! _& v* A o7 I. V3 X$ G. {4 Q
- void mainAction() {8 q* o8 T; w) ~' W
- // 发送请求
9 x3 ` L+ {# }& s1 R! K - doGet("http://google.cn");
l- l) D0 ~* s - }
; A$ J( F7 [8 Y, A8 Q, X/ y/ c
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