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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)% r* D6 \' {5 c: o
- #include <ESP8266HTTPClient.h>4 V8 I6 c' H, V G9 ~
- #include <ESP8266WiFi.h>+ z$ i: ?3 }/ B
- #include <ESP8266WiFiMulti.h>1 j/ F5 J% z0 r" Q% Y
- #include <ESP8266WebServer.h>
2 O, a1 Q: i' O' f O. o - #include <arduino.h>
& j3 m1 F5 J/ d, B1 R; i: s* @ - ESP8266WiFiMulti WiFiMulti;
8 p8 B9 {; x9 o' r0 c! a0 k; J6 e - ESP8266WebServer server(80);
# f) g" j/ B1 E; M4 Q2 {* L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 b3 p# }/ Z) N/ s2 s) P( w8 {
- ADC_MODE(ADC_VCC);
c4 l9 N& J3 b, a$ t - void setup() {6 L6 |8 P, S3 E1 Z& b( }; \
- Serial.begin(115200);3 ]2 \8 g; |5 r, G8 {0 @& |& {
- Serial.print("\r\n\n");, p" K7 q/ z# s9 g2 |
- pinMode(2,OUTPUT);
5 o, B1 ~9 ~7 l% E' n; ]# x - // WIFI
/ g* U+ e0 O8 A+ \' E+ z/ j+ n+ { - WiFi.mode(WIFI_STA);
6 ~( F( n J7 [7 Q, n& ]( J - WiFi.hostname("Sparkle");
0 {/ _" m4 W' B! p0 i5 E# K - WiFiMulti.addAP("wifi ssid", "wifi password");
8 ]( i3 ?; I9 D# Q$ r& O1 b8 W - int tryNum = 15;
- W4 K6 @0 p1 s* L - Serial.print("Connect WiFi");1 o+ x' G! D% W
- while (WiFiMulti.run() != WL_CONNECTED) {
: y. t3 r+ v5 D$ m - digitalWrite(2,0);
5 J B3 S3 F2 Q3 t" W1 P: G - delay(200);
/ Q& q/ g2 c8 e" Y8 H2 v; C/ r - digitalWrite(2,1);
% d' `; S$ q, v; ^7 F0 M0 V }& L4 P - delay(300);8 o- o, ]. d3 K( w7 s/ W
- Serial.print(".");
3 i' |. S2 I3 C6 a3 Z, x5 j9 ] - tryNum--; t) L5 p/ A! t" T( I8 l6 Z- a% f
- if (tryNum == 0) {
: ` Y" G4 o C# a8 A- v! g - // 1min, n" ~4 p4 K* @2 m. K
- // ESP.deepSleep(60e6);1 w! S6 b4 c# D3 ]! B
- ESP.deepSleep(0);3 z' j3 u0 t6 L% r3 ]& N( d0 k
- }7 j3 n7 \4 M! L# V2 d' c8 |
- }% M' C) E, c0 l
- Serial.print("\r\n");
# O, W5 M! f/ \ - digitalWrite(2,1);3 h6 \! E- z5 Q; H
- Serial.print("IP address : ");
- {' n9 @$ u& N; V: S0 K - Serial.println(WiFi.localIP());
! k: M0 J' K7 E) o" }: o - server.on("/", HTTP_GET, [](){! g0 Z1 I5 z$ ]. \
- server.sendHeader("Connection", "close");
; ~$ ]! \; k z - server.send(200, "text/html", serverIndex);
! ]8 m" K: C7 X - });* P) m) o b1 d! J
- server.on("/update", HTTP_POST, [](){
5 t% n: D! g, I) N4 a - server.sendHeader("Connection", "close");
4 F+ X. {2 h! {3 a- y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ A, N9 I, U: h6 k# V5 _ @+ J
- ESP.restart();
. k4 C6 {4 Y3 ]% s/ h2 [2 X6 o - },[](){
; d& U2 \5 i; ?% ]6 ?/ y% j- ?* X - HTTPUpload& upload = server.upload();
7 l9 R0 l& p- P( {/ w" c& H* Q% { - if(upload.status == UPLOAD_FILE_START){
, o7 g" B O- ?+ z- D h$ h" E, | - Serial.setDebugOutput(true);; q0 F1 b2 f' M
- Serial.printf("Update: %s\n", upload.filename.c_str());
) j3 }/ |9 f$ C2 {/ \* ]3 Z0 J( v7 h3 { - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& J4 V; p: G0 A$ k* ] - if(!Update.begin(maxSketchSpace)){
; {# C9 E/ [! v3 e4 N% s - Update.printError(Serial);
& K# Z& ?4 [' T$ I! l& z5 j" V; L - }
& T- D1 R/ A8 r1 K {9 {' |6 }5 I- l - } else if(upload.status == UPLOAD_FILE_WRITE){
# l2 }. h3 F/ i - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 P9 K4 Z$ Y ~/ n
- Update.printError(Serial);
/ i. z3 o* C+ K) v& f# _' K - }- {- V' @! T9 a3 I$ q
- } else if(upload.status == UPLOAD_FILE_END){
# b; a$ h+ G3 ] - if(Update.end(true)){! f* f# }2 \- } P3 F( n: |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& E/ {* L7 _. k( {6 A7 X+ Z) C. n6 V
- } else {; Q( n' S+ q4 A- n" m2 V6 y
- Update.printError(Serial);# ?# B0 F$ w* j |' l6 @4 d
- }( [2 f2 M. p3 }
- Serial.setDebugOutput(false);
, _; l1 D; V% y0 Z* J) f0 p - }, F4 X4 U; r* L. y2 J9 C% n1 R
- yield();
8 K& z+ e4 K/ V7 P* e - }); ^* p/ \* J J% |* M
-
1 i! i$ _8 O$ T. |6 G, `& Q! @5 ?) Z - digitalWrite(2,0);, }, x0 T" [3 d$ V3 N: Q% z! u. X
- mainAction();
1 H6 l+ m+ t2 H2 r - if (digitalRead(0)){1 W) y. s' O4 J4 n: ^
- ESP.deepSleep(0);
3 \3 ~( f+ a) |& c4 G D! q - } else {* C5 V1 Z! W& E( P$ T
- server.begin();* h! I! f' T, ?2 \* m( S
- }) h$ \* d8 w8 I' p* A; `( D
- }
2 l# W j' |6 ^8 R8 R/ m - void loop() {
) f& w" r3 L$ x% w t: p - server.handleClient();/ ?- O8 S, N+ D1 |' p* b
- delay(1);5 `6 c2 `. F. i8 S9 Q2 d5 v
- }" H1 X4 M+ K# ]% K1 {& I
- String doGet(String url){7 J5 e, `8 K3 i( G% d. r
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 d2 t, x4 X# E - HTTPClient http;! E# s% k" ~7 H- K& [
- Serial.println("[HTTP] begin...");. `. l6 ^$ j! t; ~
- if (url.startsWith("https")) {
# J1 x. Z: A m& } - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); b+ L+ \8 W: g! R( o
- } else {
' b, s2 R7 x A3 ^: j$ r - http.begin(url);+ x6 @4 f' v! M3 W @
- }
7 ?4 V$ y8 }9 h. D% h - Serial.println("[HTTP] GET...");
& B( O* x$ \" h' O) P' A( p - int httpCode = http.GET();
, E# t: L- h3 c$ {$ K4 p - if (httpCode > 0) {
4 g9 g* Q% Y( L J6 S - Serial.printf("[HTTP] code: %d\n", httpCode);
3 G0 h$ R% O& L6 X' U7 j; P - if (httpCode == HTTP_CODE_OK) {& Z" N; a H2 G0 C
- String payload = http.getString();% I! j! Z$ H* ]2 o7 w6 B
- Serial.println(payload);1 ]( Y0 c9 W6 D$ K( q& Z
- Serial.print("\r\n");) ~8 R& a$ E6 M0 I
- return payload;
; o! ]8 p" w' c- O& C* y' K7 o+ U - }
% F* v. Q: F6 m8 F - } else {
2 G. b8 I4 h5 B/ z0 P* @1 W - Serial.printf("[HTTP] GET... failed, error: %s\n",% [8 i9 P/ L6 S. K$ Q( m
- http.errorToString(httpCode).c_str());: H6 y( b' Y* b2 Z- R( x
- }& |0 L$ l( C% n4 i
- http.end();
1 H: X- T7 l- f5 h" x& s - return "";
' [8 N- @" @" V8 | - }
( c Y- m1 n( m5 W' m - }' ?' }# \" f5 u' o8 i5 z
- void mainAction() {
* F# H3 k, N6 V, ?% w# X. H - // 发送请求
, o' X# g9 N3 B) c2 X9 ^ - doGet("http://google.cn");% s" b+ P& b- m9 u. q6 U: O
- }& K; I1 c7 _/ o% t
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