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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)
7 c+ w ~/ w3 e6 ]8 q* ~* D! B- #include <ESP8266HTTPClient.h>
! {8 T; R* R/ Z8 R6 p - #include <ESP8266WiFi.h>% a0 c* Q9 y1 \8 m. Z
- #include <ESP8266WiFiMulti.h>
0 P8 O$ d o( T; a3 E - #include <ESP8266WebServer.h>; I- S3 U, r5 H/ Y N% N" d) n: n
- #include <arduino.h>
9 A0 J# M3 [9 d1 E0 X4 {( t - ESP8266WiFiMulti WiFiMulti;, @# y) @+ g* K: |; k+ Q
- ESP8266WebServer server(80);
! }8 J! R0 k n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ y p0 d# y2 @- S) e% j! S
- ADC_MODE(ADC_VCC);
. j* D$ J# q) o( ?) b6 _1 j% k - void setup() {
/ Y9 a# s4 S* o+ `& r9 a - Serial.begin(115200);
4 q$ o. `- F: h8 n8 ~2 X2 S8 P) v - Serial.print("\r\n\n");
9 V' Y7 l% \4 A ~( C8 I8 A" a/ q - pinMode(2,OUTPUT);
) t0 o# {1 Y4 |( t; T - // WIFI8 j. ^4 T) [5 x# k
- WiFi.mode(WIFI_STA);- o3 M( |) W( u6 z8 R* \* G
- WiFi.hostname("Sparkle");
5 X+ c# Y* w3 l3 I* I9 M' Q - WiFiMulti.addAP("wifi ssid", "wifi password");; o2 M( b) S& ^
- int tryNum = 15;
9 _* x7 P) s1 j. `- w - Serial.print("Connect WiFi");" r7 X4 X; |: W \/ @
- while (WiFiMulti.run() != WL_CONNECTED) {0 a& `. r$ Y1 Y. J6 O# W- A+ P
- digitalWrite(2,0);
* @; {. l. M1 D+ |- d& L - delay(200);
, Q/ O& f$ b( _ q6 f - digitalWrite(2,1);0 b L1 N$ [9 r" ^
- delay(300); Q5 J K% b. [- r* P
- Serial.print(".");
Z ?: n; H+ p/ H - tryNum--;0 c2 F8 ?6 E2 ` h0 c9 I0 k
- if (tryNum == 0) {0 o1 k2 f* w3 j! |
- // 1min( }' R0 O' M3 \ }# l% s4 a
- // ESP.deepSleep(60e6);$ H% p* z& ]" g! b. F2 k
- ESP.deepSleep(0);
$ f6 E/ C! i" X9 t) H! x* h - }
2 ~. U% F$ \: a$ z% i4 k( j+ I L - }1 I' w$ `9 f0 f
- Serial.print("\r\n");) U& W0 ^' I" p9 q1 \7 B- z3 v
- digitalWrite(2,1);% X/ F! K3 ^1 N; J
- Serial.print("IP address : ");( Z6 s6 B. h: n8 N/ r% t1 [( K
- Serial.println(WiFi.localIP());
% U4 ^/ H. v1 s$ n6 i - server.on("/", HTTP_GET, [](){
8 q3 `+ k. e0 @4 z) b5 |6 h - server.sendHeader("Connection", "close");
+ m8 R+ C {4 ?( Y - server.send(200, "text/html", serverIndex);; Q# f! p6 R6 e* M4 |' Z1 {+ T
- });
- }, ]/ l4 y; _2 h& s" k0 Z, f }9 e - server.on("/update", HTTP_POST, [](){5 s) `9 w2 B& V$ V+ O5 [& o! S
- server.sendHeader("Connection", "close");# D& ^9 l. r5 A+ |" b; I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 f9 h; M' r# v( K! |. J4 U: c, c
- ESP.restart();
) r X: Q) s% W# S D& w* a$ I$ z* Y - },[](){' T; \( m/ i* d$ g9 o- {
- HTTPUpload& upload = server.upload();6 G' v% z& ^" u4 W
- if(upload.status == UPLOAD_FILE_START){
: [6 j2 y2 s/ z - Serial.setDebugOutput(true);+ _( d# b$ g9 M r* s3 J
- Serial.printf("Update: %s\n", upload.filename.c_str());" t8 F) u2 j/ X0 N6 z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 k" N9 z% E0 P4 U7 ?/ S. V
- if(!Update.begin(maxSketchSpace)){
9 _: Y6 d: f; W0 v; F- R* Q8 m - Update.printError(Serial);
]$ i R+ J0 n: s6 `/ c - }
5 n9 ]# a1 x* p! D2 Q7 K - } else if(upload.status == UPLOAD_FILE_WRITE){3 s u/ v# P- {- i8 E$ B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" \5 `; p, L: n' k - Update.printError(Serial);
' s. b! M9 s! O+ V7 a3 }2 O - }5 n! _( R5 Y8 I" m3 _$ D
- } else if(upload.status == UPLOAD_FILE_END){
# T+ e/ T6 X: T J; n% q/ r - if(Update.end(true)){8 T: y& D! R/ D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. ^$ \' }8 M' E4 Y
- } else {
L) k. A& ^# O - Update.printError(Serial);( K$ F% H: f5 G. e9 i% ?
- }
0 ?) T- q8 K7 X - Serial.setDebugOutput(false);
* ]9 u7 H7 b( b$ q' d3 w' V - }
/ x, w7 z) c! c6 ]+ D - yield();5 D$ K- F% _0 `
- });5 j9 u9 m3 ]. N4 e$ f' n/ a- {
- 5 T& q! u6 r# e3 I. H
- digitalWrite(2,0);
# e" G) l3 |, O+ u$ M0 Z8 i - mainAction();
" I: [% v3 ]$ ~ - if (digitalRead(0)){
2 k& j. [$ k& \/ c6 D6 o: E - ESP.deepSleep(0);, T0 | H2 F0 K- \! _; z- y5 [
- } else {% P! a6 k# ^2 m, C7 T# F
- server.begin();3 [$ N/ q* A3 o4 u5 e
- }6 h5 I/ ]' `, Q, A4 w" _
- }( z# _0 H- I+ b9 S
- void loop() {
8 v0 Y& b5 W9 Q% Q; Z& v6 R. } - server.handleClient();: a6 K9 q) O x9 c) b5 [
- delay(1);/ y! ?9 b+ l" d" \
- }
$ Z8 D6 t% R& F8 u" r - String doGet(String url){
) }: L- z8 z: F, u! z7 o - if ((WiFiMulti.run() == WL_CONNECTED)) {
$ a& v' r6 J2 _ - HTTPClient http;' p4 U' K- I( g" L' A
- Serial.println("[HTTP] begin...");
4 t) h( h, _1 I- M - if (url.startsWith("https")) {
# i' r% W/ I) y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ W& V: X0 Q: O - } else {% w L* K3 x2 b* x; k0 x
- http.begin(url);- n% S ]. n% ?0 |* q7 K
- }) B( s4 \4 D' g8 Q' i" _
- Serial.println("[HTTP] GET...");
! P( {; l7 ?% ]' e1 v E - int httpCode = http.GET();7 M Q" F6 E: o" B' T6 W) H" K
- if (httpCode > 0) {
( s F# k/ T7 m R& Z( W, [$ _* ^+ v - Serial.printf("[HTTP] code: %d\n", httpCode);, S8 F5 s1 s. ^5 X" {6 N: w
- if (httpCode == HTTP_CODE_OK) {
/ B' B% p% H0 Y- L& k; ~3 M( A& _7 e - String payload = http.getString();
n' X0 z2 Q7 r9 ], P9 c - Serial.println(payload);
$ R. P! c! v+ }7 Z, S! r - Serial.print("\r\n");( B2 G' ?; F! E$ A0 s* P3 e
- return payload;1 ~+ d. L9 l& A/ n |5 y1 W
- }
$ y1 O) c! b- j1 l2 ~/ \' s$ l( d - } else {5 f! X3 |; X* U3 ^. o
- Serial.printf("[HTTP] GET... failed, error: %s\n",
% a/ F3 |% m( |" E8 H! v/ t - http.errorToString(httpCode).c_str());
% a& j" F: E1 R: H! ^9 r - }
# `2 C- K8 M% x. X1 A9 U9 m - http.end();6 Z" I$ _ Q+ E$ m( j! o
- return "";" _0 c2 k4 v" l
- }8 e$ t/ ~. z, y& T" i* e t; s
- }# U! |3 f0 x: k! ?4 |
- void mainAction() {% R: ~! _$ [: t2 |
- // 发送请求 A6 ~2 Y: Z3 K- o+ h- b
- doGet("http://google.cn");
$ K; j; ?( s9 x# X4 r$ @- u - }/ B/ p$ I) Y& L" i% r4 w/ _
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