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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)
. O( E* Y, }9 g- #include <ESP8266HTTPClient.h>
; V5 K1 g1 ]9 e1 N - #include <ESP8266WiFi.h>
& h7 N/ i( t0 p; W/ o2 _ - #include <ESP8266WiFiMulti.h>
, @2 F" K/ J2 u1 _. l! s4 H+ T, M - #include <ESP8266WebServer.h>
, F4 U1 S# }* @$ ^( A. S - #include <arduino.h>
/ e7 _+ I' \7 f# c - ESP8266WiFiMulti WiFiMulti;
! \9 B" a$ \& e1 ^& c T4 R - ESP8266WebServer server(80);
3 p$ U- z2 T% U8 p - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, B3 a: y, ?/ ? - ADC_MODE(ADC_VCC);- g; @6 M# k# g' p7 `
- void setup() {" j5 b8 I, z, H: i) |& P
- Serial.begin(115200);; s d4 L; Z$ e' B/ K4 r8 |) P/ L0 ~
- Serial.print("\r\n\n");
& Y- x7 f2 ~" U; W - pinMode(2,OUTPUT);
' m, M& I" F. z( D( w - // WIFI$ U% o% X: T+ u' Y O
- WiFi.mode(WIFI_STA);7 c* Q) W( n6 o! h# h' e# S
- WiFi.hostname("Sparkle");
0 s; I" N$ |) n! K/ b6 w; O# O - WiFiMulti.addAP("wifi ssid", "wifi password");
* n) e7 s; W4 Z. |* A, ~) b2 ^ - int tryNum = 15;+ v+ X( R: B$ U% b" W$ g7 |" z% ?9 a- h
- Serial.print("Connect WiFi");! V& i( m8 r0 z4 |' V- E0 s) g
- while (WiFiMulti.run() != WL_CONNECTED) {) Q1 e# T! a3 i/ T
- digitalWrite(2,0); z, i8 j5 x+ V6 Z" A, I
- delay(200);
7 `& D! I: W" _& A0 N6 S - digitalWrite(2,1);9 h, A |" ^0 b3 `* F
- delay(300);" J" Z' n& g T- i% i# k
- Serial.print(".");& o k0 c& f4 l
- tryNum--;1 ]) z* I( g" X* f4 @
- if (tryNum == 0) {- _. j( j8 o, O/ Z& X1 C" \% j
- // 1min
; g Z( i6 O$ U4 }$ ? - // ESP.deepSleep(60e6);! \4 k# c( g0 U) u4 }' x7 m2 S
- ESP.deepSleep(0);0 z. g0 d6 j7 p; X( ]
- }" f8 D% R1 R; X+ S& H( q: [3 v8 h
- }
& U$ F: x I0 L7 x# I' d. q* L Q - Serial.print("\r\n");
- c' f0 d! a+ D2 u4 i( D - digitalWrite(2,1);
- L; _6 U7 s t4 T2 H1 \ - Serial.print("IP address : ");1 h5 d9 w* o) @" `# m6 Q7 \
- Serial.println(WiFi.localIP());2 Y. f. K2 u" z; H2 a3 }# @
- server.on("/", HTTP_GET, [](){
" }1 r" i1 Z6 e' k, @& t$ O/ ^ - server.sendHeader("Connection", "close");" @6 H. F# x8 i1 {, b
- server.send(200, "text/html", serverIndex); a& e4 L) g) ]
- });
# U/ \1 ?4 t# G8 E4 H, Y1 J8 | - server.on("/update", HTTP_POST, [](){; Z% `1 i' j8 L$ P8 n5 R+ e
- server.sendHeader("Connection", "close");
4 H% L$ p5 |% i7 L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 V9 U# N$ @- K7 i - ESP.restart(); |. t; o# G. Z* k: S; r n! p
- },[](){
0 L3 O( ~+ |6 o5 B8 B2 c2 @ - HTTPUpload& upload = server.upload();
% \+ h! A1 ~ D4 V$ z1 b - if(upload.status == UPLOAD_FILE_START){* t1 n6 _; L8 S, O0 |* I
- Serial.setDebugOutput(true);* f* y( u7 r5 U, s- u. t( Q8 Z; p
- Serial.printf("Update: %s\n", upload.filename.c_str());: L" }4 j, M* i
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# Z6 U, p. k7 B) W6 k( h# Z - if(!Update.begin(maxSketchSpace)){, a' [- M4 I0 t: ]4 Z1 B6 d* a. _
- Update.printError(Serial);" T- j% A8 X8 _. t
- }
+ _) B+ o+ k0 |, | - } else if(upload.status == UPLOAD_FILE_WRITE){
, z& k& I5 M) Y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* w! Z) V8 x+ } T r+ O - Update.printError(Serial);
' L4 n6 m0 O. @; K7 m: H - }
+ H; P! q. e. `: c7 M. { - } else if(upload.status == UPLOAD_FILE_END){
( Z5 R+ r. P$ _7 h - if(Update.end(true)){
1 s7 S5 k7 J5 ]+ a1 _) w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 a4 Q* i( y1 H" ]4 m - } else {
/ }. w% b% f9 i% b - Update.printError(Serial);
! }# Z6 i+ w7 v9 x# J! D - }
7 R( n2 T0 l5 O, E7 a - Serial.setDebugOutput(false);
5 |5 h+ M0 y+ M" [ - }
8 k; c+ ~; N+ R1 }7 ^. z - yield();
7 X, X# B8 s+ f% S8 r/ v# s - });
l( a! P: m r% A2 ` - 1 Y' d; u5 ?3 g L" F! O6 ^: \ A
- digitalWrite(2,0);/ s) o7 q; S z' w Z' s
- mainAction();6 n @, U* W9 g+ f, g6 z$ o$ C7 B
- if (digitalRead(0)){' [' f1 \! e# s& R9 z" ^! \. U
- ESP.deepSleep(0);" ^' V9 Y7 m7 ~5 Q) z$ ^
- } else {
. N- Q B9 h* O( R* n7 W# ] - server.begin();' y( j! i! \ f) w' p* c
- }
v: W; ^3 z O6 z3 B2 S2 c - }
: ?0 L3 P$ R; S& O - void loop() {
# F" r! F2 R) c( D - server.handleClient();2 S: ?; U# v8 R* m
- delay(1);
% M! [, X& c' Z# P# K* }! r7 U% B - }+ K( p1 k& O. n5 f. R
- String doGet(String url){
' J( R8 m* H5 _. a$ N - if ((WiFiMulti.run() == WL_CONNECTED)) {
~* S+ t8 C4 M3 Z6 J8 A8 O1 C - HTTPClient http;( I- r8 L4 h! _( K9 B
- Serial.println("[HTTP] begin...");1 \7 A) u0 ?1 O6 K
- if (url.startsWith("https")) {
+ g3 V% L1 d. E) v# c+ f. b - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) g1 V6 x0 a4 ^! t
- } else {! [1 O. H& b+ _! {
- http.begin(url);4 ?$ z8 g: r& S2 Q0 o
- }& S. V8 R% H6 Y2 o. s5 j
- Serial.println("[HTTP] GET...");
, b. _+ b, ~3 F& t2 S - int httpCode = http.GET();
3 ~5 H8 j: K5 } - if (httpCode > 0) {: F" x- j! G5 a p( d# M' `$ d
- Serial.printf("[HTTP] code: %d\n", httpCode);
4 v( K& V. a F5 B$ Q. k - if (httpCode == HTTP_CODE_OK) {
# B. ?) n; a9 W( i/ [$ J - String payload = http.getString();
# g5 i: q7 L# q0 j - Serial.println(payload);1 y( y" S+ m3 c! C9 g. J5 \' O$ x& u$ X* c
- Serial.print("\r\n"); ~- m5 o- l: _$ v6 T
- return payload;
b9 u' r T- f% u9 [5 k! d9 O0 e - }) X6 R: r- Y O2 a9 F3 p
- } else {0 t6 C8 ?7 s* \8 z
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 R0 D4 T% i% g - http.errorToString(httpCode).c_str());
6 T$ N' q$ c, w, }: c, Q - }8 x7 B; ?. U2 N* E- n# {
- http.end();
' `- p7 j2 e+ |) M - return "";
; | u! ?, O* @" F7 ~& a$ G4 d - }1 B% k5 n) [1 ]; e) n- [3 E3 C
- }
3 m% ~- y) f! k u9 K7 { - void mainAction() {0 U! D" d7 t0 q8 E6 Y
- // 发送请求
0 Z: }" n; U$ B ` - doGet("http://google.cn");
( |4 \: K6 c. l- c1 }$ z4 w' n - }
5 r+ l/ J3 V0 U' B
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