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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 H! P. ~' V2 w- r) w8 I- #include <ESP8266HTTPClient.h>
4 ]$ J4 k6 A+ w$ {: {$ J - #include <ESP8266WiFi.h>: l. ]: n2 ?: |( [
- #include <ESP8266WiFiMulti.h>/ ~0 ^* N8 y+ a7 @) K5 o8 M' x- M
- #include <ESP8266WebServer.h>9 ]/ D" U, m: I+ E* M
- #include <arduino.h>+ ?- l0 ^3 ~) s( x. x
- ESP8266WiFiMulti WiFiMulti;
; V) h* I3 N. T' i - ESP8266WebServer server(80);
7 t& W, E. \4 o% Z! [5 {. ~, J - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";+ y7 Y' n9 U! `- a
- ADC_MODE(ADC_VCC);
! f4 c' k R, L( f4 e' |! w2 N. {, { - void setup() {
+ R1 `8 G+ Y# ~# w5 h1 n9 W" d - Serial.begin(115200);
0 n8 {8 L1 \2 q6 X - Serial.print("\r\n\n");
; F3 f4 F8 W: r& [- A7 L( i - pinMode(2,OUTPUT);( D) ^! G% ?& e, c% r' `
- // WIFI
1 g4 Z5 `; D! M2 ~) V/ d - WiFi.mode(WIFI_STA);
d& G* g" J& S, }. Y# o - WiFi.hostname("Sparkle");! ]2 Q7 R8 I6 V& Z& e9 [7 b
- WiFiMulti.addAP("wifi ssid", "wifi password");
B% `( I G8 } - int tryNum = 15;3 R& S" v, f7 U5 h
- Serial.print("Connect WiFi");6 Y5 L4 y5 _: c2 L& `8 g
- while (WiFiMulti.run() != WL_CONNECTED) {+ N8 v6 C0 ^7 z2 f+ @. {
- digitalWrite(2,0);
9 G9 h: U+ C: g. ?/ [: L - delay(200);
3 W+ @: W$ @/ R3 s3 I( u5 H! n7 ^ - digitalWrite(2,1);
" h3 h. V( W# k1 P+ d3 p, [ - delay(300);% ~' Q4 S$ }( k: j0 M; }" ]& l: p
- Serial.print(".");
4 H. j5 R1 m4 v7 H1 V8 |8 W( _ - tryNum--;
% o8 }2 y/ C) g4 r% R$ j" n - if (tryNum == 0) {4 h2 G" |$ t, ^; w/ ]% {. X
- // 1min) A4 f+ c/ F0 c( [2 l5 m7 V6 m
- // ESP.deepSleep(60e6);
: o$ Y" _, B& R) v - ESP.deepSleep(0);
/ G: T- c/ a$ a; ^% { - }! b/ ?# G% Q! i P7 m- W% L
- }
0 l0 k* O# y( T; w* F, S - Serial.print("\r\n");9 G! F/ l% G! k- l
- digitalWrite(2,1); E- \6 b1 W. b' e/ [
- Serial.print("IP address : ");
% e9 i% h: V& Q6 ] - Serial.println(WiFi.localIP());- d$ G0 e; a+ P, X: [
- server.on("/", HTTP_GET, [](){9 I8 X" y$ N- Y( n, v+ b; J, W
- server.sendHeader("Connection", "close");) V- b7 a" C; Y" y3 ~* X
- server.send(200, "text/html", serverIndex);( _4 }* D# E- a) Z1 {* H# G
- });0 t3 C6 P1 j a3 q
- server.on("/update", HTTP_POST, [](){* h" j+ `. y3 x1 B1 w {7 |
- server.sendHeader("Connection", "close");8 L- x' [7 B9 v) |7 K! D7 `& J& B
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' H$ ] G- g5 P. R# R
- ESP.restart();
$ g3 ^8 O3 K6 f j) k - },[](){1 o5 T# z+ m# I+ x; f6 }7 k
- HTTPUpload& upload = server.upload();: S, e5 ]$ e# T1 A4 o6 U
- if(upload.status == UPLOAD_FILE_START){% k6 P+ [# [- B' ], M, y0 v9 o
- Serial.setDebugOutput(true);) B4 ^: R1 m* m# n( r
- Serial.printf("Update: %s\n", upload.filename.c_str());. ^$ _: C9 z, b L& R: Q' ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 q9 w+ M) W1 [% f b0 ]
- if(!Update.begin(maxSketchSpace)){
1 g: l" @/ l% Z+ R6 i. ]' o - Update.printError(Serial);4 E1 g. |0 u4 k; ?6 s% l
- }
" P3 ^7 [! v" E+ L4 R7 s - } else if(upload.status == UPLOAD_FILE_WRITE){/ W7 H, s, T$ P% H8 S& d
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. _! m7 M9 }8 _5 X# r: d" ^ - Update.printError(Serial);
9 g& w' \& P$ [0 a+ o - }
2 B" W. \2 F0 k2 F9 X U6 Z - } else if(upload.status == UPLOAD_FILE_END){1 M) q3 j/ a) b% @) \( i
- if(Update.end(true)){
/ d2 a5 W! x4 V- y h" T: q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 H' L: E4 [' _4 t! ?/ ? - } else {
6 F2 e; ~5 r0 A4 V" u - Update.printError(Serial);
" f6 @) i6 C" Z, ] k! b1 |" R - }" D# t t- {5 I0 p
- Serial.setDebugOutput(false);
6 z0 n; I/ c% e0 F8 d - }6 k4 X0 J6 Q* P, V1 `
- yield();
9 D, |& g6 T. j( c/ T% i/ ^$ k - });
: @, d2 r1 N# l3 z4 y d/ M - 0 m0 _2 M% k4 a4 N: z" {4 d
- digitalWrite(2,0);1 j0 ]) d4 s, k8 _& R0 w
- mainAction();
( ~ f5 X+ Y1 J. B8 I; \, W - if (digitalRead(0)){
6 q; H2 L' b( c/ A0 ]& M - ESP.deepSleep(0);
8 |6 O9 G! p: I' h6 @4 R9 j8 x - } else {
- [- t- n5 c6 i- Q+ \ - server.begin();! ^/ B+ ]- X; G A9 v1 W. {- l
- }4 j8 P3 Y5 v ^( a
- }1 Q% Z& E4 L& L# W( ` M
- void loop() {6 V/ I4 s% O6 @" U4 B0 `
- server.handleClient(); o+ m+ S W1 C4 v9 e- d
- delay(1);; B7 n- U4 E, [2 Z+ z# O
- }
' r$ ^/ ?% f# X2 M/ z2 ]" H - String doGet(String url){
. K, c1 S! Q9 ~/ w, e - if ((WiFiMulti.run() == WL_CONNECTED)) {7 C# s+ [; p- K3 Z
- HTTPClient http;
% }/ c8 T. |; Q w% G0 C* D" l - Serial.println("[HTTP] begin...");
7 S# Z* r, }8 h. s2 J2 W0 J - if (url.startsWith("https")) {
# d( ` i3 u3 `3 ^- k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' f b' @' n& c% U' v$ f4 A/ G! C - } else {8 x$ k6 X3 Z1 n' H9 j6 |, ^3 T
- http.begin(url);, E, L1 ?7 W4 w
- }
- {3 p. r9 D& s. c: T( I5 I1 i5 w - Serial.println("[HTTP] GET..."); W u( r5 W& R% V* J- v/ b
- int httpCode = http.GET();. E* E' t+ v, p f f
- if (httpCode > 0) {. e. I' w! d1 \! `
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 G' g7 D3 ]$ [6 O# o - if (httpCode == HTTP_CODE_OK) {! ]& |( e8 M" v# \! ^: @4 w
- String payload = http.getString();
7 m. Z F" r( [ _$ D' ]3 F0 i - Serial.println(payload);: j, O) |) ~$ h9 f Y; j4 D8 c
- Serial.print("\r\n");4 }1 O2 h* {: v# J: r8 _, \
- return payload;# b% e3 ^* z( a5 `. j4 x% A
- }" G: H( c# h( G$ Y/ a
- } else {, F' H4 J; B$ y# }4 U% N6 \) p
- Serial.printf("[HTTP] GET... failed, error: %s\n",
+ u; c& L, V& @$ z8 k* L - http.errorToString(httpCode).c_str());* M$ W1 v: s- d# ~/ U
- }
& r! a9 h7 {3 |' N# v! Y! Q* u$ y+ h - http.end();$ j. i; b* w4 |% s- z% i
- return "";2 p. M! M7 u3 T' C
- }! s1 t! l7 X6 U, o+ v6 C: H
- }
5 k0 w. r) ]; D - void mainAction() {8 S- T( E3 r2 P9 X, W% i
- // 发送请求
/ e# h% n2 J/ l - doGet("http://google.cn");0 ^) G4 B n( \3 N
- }* q5 E1 k6 a- J! J% U2 X O
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