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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)
% J2 @, K: C3 {! E- q! u+ r- #include <ESP8266HTTPClient.h>4 B+ ]: G. {$ d# S( t* {; l" z
- #include <ESP8266WiFi.h>
% d2 }: g4 E2 ?% P! t- S& ~5 ~. o - #include <ESP8266WiFiMulti.h>
+ O3 b' N0 y/ R5 A( L) n - #include <ESP8266WebServer.h>
! Z7 |! i u7 ^8 A5 ` - #include <arduino.h>
8 x" [& n0 D5 m7 d# {8 V0 y: I8 R+ I - ESP8266WiFiMulti WiFiMulti;* ^! P, ]9 Y7 u/ |& G
- ESP8266WebServer server(80);* o1 L* ~5 P' {
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' k' f7 D7 \6 P- e/ D - ADC_MODE(ADC_VCC);, u8 ?) u- c' t9 y) [
- void setup() {5 |, o, x1 I/ n1 n; f
- Serial.begin(115200);
6 m& J2 M, s0 G - Serial.print("\r\n\n");# X: G5 z- P; p& |2 _& P; m2 \
- pinMode(2,OUTPUT);
* K/ O' S7 O+ I- Q" e$ k - // WIFI/ f2 j1 E& ^! P
- WiFi.mode(WIFI_STA);2 D! x$ V- ^9 R# {: ^3 ^7 I2 T5 r
- WiFi.hostname("Sparkle");
$ R# g& y& t2 C& v - WiFiMulti.addAP("wifi ssid", "wifi password");
* b& u7 I' ^* Z$ k - int tryNum = 15;
, |9 S9 X0 J" d3 S8 c - Serial.print("Connect WiFi");# A, v/ k/ Q, }" Q# N3 q
- while (WiFiMulti.run() != WL_CONNECTED) {
4 F% d5 w" u: B( j3 N' i: B - digitalWrite(2,0);# Q8 g, L7 q- s, T
- delay(200);( _5 E* s1 S: \% A
- digitalWrite(2,1);
4 Z' Z. ~& K: L, W* k; @ - delay(300);% y8 F$ H$ p8 U H9 g" K4 o# A
- Serial.print(".");& v; J' z8 Z/ F2 v
- tryNum--; _8 |6 O* F6 e2 k
- if (tryNum == 0) {5 U% K5 x$ T2 W' Q8 J
- // 1min
6 G8 B& F& M2 Y - // ESP.deepSleep(60e6);
1 G1 d) z9 R, V h. q - ESP.deepSleep(0);
' w$ {" j2 I9 V& l! V# q; F+ t - }2 T, ^$ O) s( r5 e) t1 e+ i' W0 n
- }5 r: l, \" k5 E: a6 y* R
- Serial.print("\r\n");6 r0 h/ A9 _) s, h! j
- digitalWrite(2,1);
8 I+ x6 ~7 V. N1 @! G+ R - Serial.print("IP address : ");
) z9 O7 w- J. w# H - Serial.println(WiFi.localIP());
) v7 X- D% ^9 ~1 A - server.on("/", HTTP_GET, [](){0 ]+ S" Q7 j4 n4 [- l7 r) ]" `3 r/ N
- server.sendHeader("Connection", "close");
! e& N, [* w) L& P* e. | - server.send(200, "text/html", serverIndex);9 o2 A S$ l7 l9 C4 }
- });
/ C9 q8 D: y8 R3 s% i - server.on("/update", HTTP_POST, [](){$ J& Q& a/ e8 k5 B" [
- server.sendHeader("Connection", "close");
( p4 R) W: ?1 R/ ^6 `- X0 _( X1 ~( y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: [# p5 }/ M0 K& v- u% b7 k
- ESP.restart();3 K& y4 z+ G( e" Z' s9 b% l0 M
- },[](){7 r0 X2 W; {, P! \7 z K" x
- HTTPUpload& upload = server.upload();
! K b; l6 x1 p8 ^; ^/ F - if(upload.status == UPLOAD_FILE_START){
f, v; r ?3 X - Serial.setDebugOutput(true);" B7 W( P# T' X, o$ n
- Serial.printf("Update: %s\n", upload.filename.c_str());
`* l! I7 K" R. H( o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; y, T4 `7 h/ U; u) J. E - if(!Update.begin(maxSketchSpace)){
+ Y5 a4 n/ B! W( M$ A% P9 S8 N& g$ n8 Z - Update.printError(Serial);* f; {- T: f7 H9 @9 K, r
- }8 L1 _$ h& e1 u5 I3 s: p
- } else if(upload.status == UPLOAD_FILE_WRITE){1 m4 I3 v( w, A2 _3 |2 D3 C
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 R% p! J* o( X+ q0 m
- Update.printError(Serial);
9 f# b- C7 ~, h! j5 n1 y! m9 a0 l - }. N" X" U$ f% Y# j' B6 {
- } else if(upload.status == UPLOAD_FILE_END){
( D7 |3 l' ^# m* C - if(Update.end(true)){; i4 D# C) G6 c" w& h/ ^5 t' S% ?, l
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- n% W* F1 h& |; [4 N1 H! [+ C* p - } else {- L/ ?- S4 X( P! E% r8 G y& W0 Y
- Update.printError(Serial);
! } }. G1 n' e1 \; f2 w8 M - }
( F& Y. H/ `/ q w - Serial.setDebugOutput(false);
. A" p3 N! @8 P+ l7 V0 @ - }
5 L: }+ d, M5 ~- q1 h' j+ i) X - yield();
8 M0 m4 Q2 T5 V - });; y% d$ u# a$ j5 A4 H8 O& _
-
( t6 |1 |4 J$ l/ ` - digitalWrite(2,0);# k' z5 i2 I; u! r# t8 n
- mainAction();
. h9 N% x3 @ @/ f - if (digitalRead(0)){
1 N, d: i, B4 E9 X* h - ESP.deepSleep(0);* q% A2 \. k. V+ u$ F
- } else {
, V! A& o t' a% G6 | - server.begin();
; h8 u0 t' p- F. ?7 W8 T - }! Z& |8 n8 y' d S- t: ?) _
- }3 A2 Z; L8 Z# n7 ~$ S3 ~
- void loop() {) E8 K; q! i) i- W
- server.handleClient();6 _) p0 Q! {$ W' s/ S
- delay(1);
& u1 L9 G2 q x - }
/ [: y8 S* r* ~' d - String doGet(String url){! x+ D2 `& M, g( r$ Y" z* L. u5 s
- if ((WiFiMulti.run() == WL_CONNECTED)) { T. F6 T9 A- \9 Y
- HTTPClient http;
" ^: F' [' i3 G/ Q6 o% z - Serial.println("[HTTP] begin...");
f) y. T- q2 j1 D - if (url.startsWith("https")) {* P4 G& x2 D0 ~. }
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 }; F0 m1 _, O; _- q# \" }" r
- } else {
8 J: c$ L! B0 q- U$ c - http.begin(url);2 x1 ~; D2 W0 N( I9 }
- }+ Z3 ^0 f) u( ~9 Q1 N! A3 f9 W
- Serial.println("[HTTP] GET...");2 y- N2 w) A* q9 |
- int httpCode = http.GET();. T/ H2 k' u! A, k/ e! y
- if (httpCode > 0) {
1 u9 I/ Q. S" {9 \3 C% e - Serial.printf("[HTTP] code: %d\n", httpCode);* o) {: Q3 ?9 i6 }# T% p2 z: L
- if (httpCode == HTTP_CODE_OK) {
2 i" m! h7 t( W1 V" o5 p - String payload = http.getString();' o! W8 p! t6 R1 G9 {1 a
- Serial.println(payload);8 L; A; f; J2 [0 j8 C
- Serial.print("\r\n");
6 L$ \ T2 G' y: C6 m) R5 ~/ t - return payload;9 T$ B& }5 s; I* p$ u; T# ~
- }+ n& L1 H- ~# F0 V% ?
- } else {
^% P- v( I3 j, d _3 X& k! @ - Serial.printf("[HTTP] GET... failed, error: %s\n",9 i/ m4 }0 m8 a# U4 _2 v
- http.errorToString(httpCode).c_str());
: e- _6 {4 H' h6 z | - }5 S, y0 `5 d% ]
- http.end();
1 f3 f, V; {5 R6 H2 J3 b) a# @ - return "";! J9 K; I; U* _9 U0 s
- }% t3 h* t5 V& U' u. F$ v% k7 B2 Q
- }
3 ?+ ~8 v9 ]- |4 P - void mainAction() {
6 p' h j6 |7 t% `) q& `8 ?3 p - // 发送请求
! F, u3 f4 o7 O/ N4 H) U - doGet("http://google.cn");
2 Z, i; `/ [* ^" Z/ { - }( g+ T" t- M+ b. ]
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