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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)
/ n/ A) V5 a# B% M5 ]& J9 i- #include <ESP8266HTTPClient.h>, w" c, M9 [) G8 n
- #include <ESP8266WiFi.h>
7 q, |3 ]$ ?: f( K4 v) c - #include <ESP8266WiFiMulti.h>
! E( V/ B, v( J) o5 p: { - #include <ESP8266WebServer.h>
5 K t7 F6 _; k( R5 F* X" W9 Y' W - #include <arduino.h>/ D0 l7 u' I/ A R: J9 U
- ESP8266WiFiMulti WiFiMulti;4 X3 ~% D4 Y1 [$ q9 G5 J
- ESP8266WebServer server(80);
2 S/ o# N' Z- f8 d( T. u, K: c - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- p9 U! a( d7 e; B& f% G5 f9 _
- ADC_MODE(ADC_VCC);, T7 ^7 I+ c' f6 z5 z) }; b
- void setup() {8 p V4 C, u; M$ Q6 ^5 U) `# d* q7 W
- Serial.begin(115200);, ?% P7 U+ Y0 e7 f- P G( ]; m
- Serial.print("\r\n\n");
2 n5 {; r, z3 V5 I7 K3 Q - pinMode(2,OUTPUT);
4 e. G% Q g& Y* X/ U - // WIFI
; |: Z1 j8 [/ C - WiFi.mode(WIFI_STA);" M! J! p+ C7 | E! r
- WiFi.hostname("Sparkle");9 `7 [/ P; v f# N; m+ Q
- WiFiMulti.addAP("wifi ssid", "wifi password");3 _# g, }9 A% j0 F* u2 t
- int tryNum = 15;# J8 `! w" s! O
- Serial.print("Connect WiFi");
/ R1 Y# S4 L8 { - while (WiFiMulti.run() != WL_CONNECTED) {
: x' |) V- C8 h2 A; {: u" x - digitalWrite(2,0);
0 b( ^+ o; H+ X - delay(200);
' e0 \! E' q7 u5 c9 g2 c - digitalWrite(2,1);
$ P1 C1 u0 ~; H - delay(300);
7 y4 T6 c }0 Z( h$ O. r - Serial.print(".");5 }7 d4 y6 c0 N8 I% v
- tryNum--; e5 q6 [/ \4 A: }& e
- if (tryNum == 0) {
8 b; @* \% T$ Q. Y( j- r - // 1min
1 X7 B, z3 Z8 b - // ESP.deepSleep(60e6);
6 `' W/ {9 ^/ B) ] - ESP.deepSleep(0);
2 G! q- {6 M4 J - }
3 O2 |/ l5 X/ R, x - }# t: T! D) X$ W. E& r$ @$ _
- Serial.print("\r\n");
7 x) O. h# Q2 G p+ m9 V/ u - digitalWrite(2,1);
# h& b' J, g8 U) w& v u5 y - Serial.print("IP address : ");
) O5 \ P/ I4 D, q( K( o1 E/ \ - Serial.println(WiFi.localIP());
# A6 b- I- j- S - server.on("/", HTTP_GET, [](){
A b. B8 G8 F q k5 F+ T2 C$ _ - server.sendHeader("Connection", "close");* Z T' Y. D* T
- server.send(200, "text/html", serverIndex);: W; c5 w1 q9 P4 D% E) E
- });
0 W; d: ~3 \* E/ y" K9 C# X0 } - server.on("/update", HTTP_POST, [](){! F6 U9 K; z, Y" q& ]( u8 k
- server.sendHeader("Connection", "close");2 ]' Z, k, o8 q: V. \! p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
+ `$ l' @# W- F2 G ^% Q$ [ - ESP.restart();1 A5 C/ s [2 S/ a: |( r
- },[](){
- z( f* k$ x6 }' H - HTTPUpload& upload = server.upload();
% p ~' {% v' ~8 N! O - if(upload.status == UPLOAD_FILE_START){: H0 \- v2 e1 p& w0 g: K7 c* i
- Serial.setDebugOutput(true);" B. A- n. q8 B+ u) P
- Serial.printf("Update: %s\n", upload.filename.c_str());3 N( n- i% c8 k+ O
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 W; G3 h& q4 ]3 [0 Z2 T( V - if(!Update.begin(maxSketchSpace)){) ^0 x8 w5 D% L
- Update.printError(Serial);
* C. I( Q3 `0 t6 N% X* B5 _1 w9 d - }
( {, t4 U7 a' o7 W% Q( T - } else if(upload.status == UPLOAD_FILE_WRITE){1 A( V1 V v- _3 M
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 _# G9 T! E9 t$ W. f! k* M - Update.printError(Serial);
* W0 i7 R# l9 X0 j - }; M' n& G, j6 c2 B( i
- } else if(upload.status == UPLOAD_FILE_END){
/ N" q& ]: {5 h# \6 ?3 V - if(Update.end(true)){
- w( e, t# r& V1 E, M' ?9 B" g( a - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 O- D5 x6 o& Y$ V" m
- } else {
3 P+ j% a6 Q3 c* j) ~& `8 v% }- s - Update.printError(Serial);4 [ r% \; H0 n2 ]; @
- }
) J, h, q- h( w# T" M - Serial.setDebugOutput(false);; I2 A% }" }3 j, E2 r7 z n
- }- {4 U, u+ f: }. P
- yield();
6 n7 V+ M$ x3 l7 v9 v4 O - });" q$ ]% h, q4 x% D. U# Q
-
$ o/ p7 A7 @1 G" B+ U( U4 d - digitalWrite(2,0);
' U+ j6 L" ~! M# R: h2 `1 r - mainAction();) B/ k+ [( K3 a
- if (digitalRead(0)){. i$ y: @, d/ J
- ESP.deepSleep(0);
3 D7 A( o% g5 k: p - } else {* S1 x. J: s( r3 n* H7 j& M
- server.begin();
4 t5 o- E1 T3 o' F' J. s - }6 e/ I. e4 z1 o1 G8 D
- }
" t( n8 y/ C$ @3 M+ l! _& N - void loop() {, m- a2 A: x, d& Z. F) t) l
- server.handleClient();
5 x2 e4 A, _5 U) d; t$ d# E - delay(1);
/ `: k- X4 |. @; ?# }- Q - }& b$ E2 X d1 m$ ]/ b1 {
- String doGet(String url){
& b8 r, c% [# `/ ?, X# d- l' |/ ] - if ((WiFiMulti.run() == WL_CONNECTED)) {8 T1 Z |$ ]8 ~7 |" h
- HTTPClient http;1 B3 T: N9 v0 E2 ]0 j
- Serial.println("[HTTP] begin...");6 E1 Z5 V3 e0 O5 B0 _* v
- if (url.startsWith("https")) {
$ ?* t d/ M) N4 F4 s) y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
F4 a9 o( U6 `* f! n6 X - } else {, a- x3 X3 l: U
- http.begin(url);0 |/ a2 h1 q, F
- }* N1 } |5 M: M4 |0 J
- Serial.println("[HTTP] GET...");. {' k; {5 I6 X- U
- int httpCode = http.GET();# P# x/ B9 {! J+ I s
- if (httpCode > 0) {
* u6 ^6 p S8 |' N; s9 v {/ | - Serial.printf("[HTTP] code: %d\n", httpCode);7 ?, _, v" ~% E
- if (httpCode == HTTP_CODE_OK) {7 A# g& C& g5 J: N& E% x3 z6 L
- String payload = http.getString();% ]% E A2 S; l( O% G/ r8 S
- Serial.println(payload);8 a4 K+ L2 j. Z- j% F" e2 m) \
- Serial.print("\r\n");6 {& U2 s i/ P) g& z* g
- return payload;8 K9 j6 k- m& K- k. U" u4 R
- }
a( ?4 Q) e* i; R' ^' y - } else {6 n: S( x# G* A! p6 [
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! t: ]; w7 Y+ f# t8 q+ X - http.errorToString(httpCode).c_str());
1 E1 C' }( c& Z, E4 @3 } - }$ G# [9 ?' Q: h& u* g$ ?
- http.end();! O; D$ b2 S% B
- return "";' C; Q) m- X& V, B# E/ g, V1 _# p
- }
+ \6 e; J2 d5 _; g+ p2 W - }
; |' y( x1 N- ~2 R - void mainAction() {
. e& m* @# S$ A1 ~2 ]% w - // 发送请求
5 U" v2 ?( J* _/ ]7 C( {4 Z( X" i - doGet("http://google.cn");
0 P: }, p8 N. x% g- P9 l - }
4 i- X; ?- j# y* p1 F+ {
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