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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)
, y/ Q1 c5 }* f9 Y* C- #include <ESP8266HTTPClient.h>2 W8 K7 _; v8 B; I
- #include <ESP8266WiFi.h>
5 l! }$ C- V5 p' v - #include <ESP8266WiFiMulti.h>8 ~. v: |$ j+ W5 b; p
- #include <ESP8266WebServer.h>
% U' F* N1 X' P8 ?; T- X, N3 E - #include <arduino.h>% f6 r, ]/ V ?; ]# S# I
- ESP8266WiFiMulti WiFiMulti;% ?, m E' A7 L0 Q) v
- ESP8266WebServer server(80);$ a: ?4 _( a# F* h2 a
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 Z0 ?6 B! y# v: s - ADC_MODE(ADC_VCC);
- [3 k( N: d8 v1 f1 e - void setup() {
4 E( T, `( \( g6 a - Serial.begin(115200);. H b/ t3 }0 } V2 C1 ]* i
- Serial.print("\r\n\n");6 B; {9 R& G' y5 Y+ H `
- pinMode(2,OUTPUT);
& V( D% a% |* F: c+ d. _" d - // WIFI/ a$ W4 L8 J: C7 Z3 ?* N8 M3 @
- WiFi.mode(WIFI_STA);& U' m- F6 L; h" l/ h: _
- WiFi.hostname("Sparkle");
7 |, e! ~- F/ _. J* U - WiFiMulti.addAP("wifi ssid", "wifi password");
% S. {, G) f$ K/ r' ] - int tryNum = 15;3 c* y) ]9 y" _3 V
- Serial.print("Connect WiFi");
- s+ I) I1 T: E3 {6 m - while (WiFiMulti.run() != WL_CONNECTED) {4 J% O" n8 i+ z8 T6 d
- digitalWrite(2,0);
2 B" Q: n, g, |4 P" k+ T/ A+ } - delay(200);
1 @, E. ]2 o. F' e( @; X+ X7 v - digitalWrite(2,1);1 t7 h, K7 ]: [. c! Y( b
- delay(300);
& _; o, \ E. j5 K( r! A - Serial.print(".");
# X9 J0 t5 N+ p - tryNum--;6 ], n# }) r4 @8 g2 o* n
- if (tryNum == 0) {# i6 W c/ C* ]; Q% I" V
- // 1min" a& P2 [4 P; m5 \/ v) D9 g( D
- // ESP.deepSleep(60e6);* ~) G I* k# O
- ESP.deepSleep(0); U9 |; ^& {+ P# t6 z: I) b
- }% O r. C6 F2 a, {- I
- }2 @9 C- K6 r* N7 o0 p: J
- Serial.print("\r\n");
% T1 }6 p' g' S - digitalWrite(2,1);
+ Z! S, {' _; c; ?1 @* [. O - Serial.print("IP address : ");
( x+ V, E8 P1 C - Serial.println(WiFi.localIP());1 f- `; P+ x# r2 M" O4 N6 x6 O8 `
- server.on("/", HTTP_GET, [](){
3 O$ _" P6 f/ U4 o - server.sendHeader("Connection", "close");
' i |8 [: s5 Z/ x% W! m - server.send(200, "text/html", serverIndex);
8 R# h/ ^% `$ r; S8 n - });$ K/ H. g! b. \, J+ }& D. ]( b
- server.on("/update", HTTP_POST, [](){4 N' b: w! a* z5 @
- server.sendHeader("Connection", "close");- Z2 s" _0 K& B* E5 c
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 i0 P) j) B! J3 E- h4 A - ESP.restart();
4 S9 X- A. o& Y$ k - },[](){9 R R/ E6 K( S$ o) p/ g
- HTTPUpload& upload = server.upload();
; y, ~/ h& A9 y# [+ ` - if(upload.status == UPLOAD_FILE_START){8 k( k' `: g7 Z; F9 {# E
- Serial.setDebugOutput(true);
! [4 o7 k+ \% ], ] - Serial.printf("Update: %s\n", upload.filename.c_str());1 ?$ D% i, o) i! ?0 V
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 b: e% t# \3 p) N$ K8 q - if(!Update.begin(maxSketchSpace)){
$ e- A4 M" d2 K+ |) @& ] - Update.printError(Serial);
! @/ `4 \3 ?. l8 N$ j4 t - }# I# T2 u% N, u5 ^$ ?
- } else if(upload.status == UPLOAD_FILE_WRITE){; Q' |/ T. j; L- x0 O9 J2 ~! D; q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# G* r; T6 X2 Y( H' S0 o" T5 n - Update.printError(Serial);
M/ a/ V1 T6 J- h, w0 c2 j z/ G - }$ x8 j- T$ k* f/ ?2 g8 V# Z
- } else if(upload.status == UPLOAD_FILE_END){
4 N0 i( N$ B5 w7 o' K. Z4 e - if(Update.end(true)){
+ J1 X7 g6 P6 C* X - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# [$ q$ D- I$ z3 V - } else {
: Y9 g6 u1 d/ P# H1 H - Update.printError(Serial);
* H3 x0 D3 t' w - }4 S3 g9 P' J2 v
- Serial.setDebugOutput(false);
! b% q) d# H: T - }
q8 {2 W, B" R8 g - yield();8 b! J% o: E a$ e' g) t; f
- });9 r7 A- g6 U X. Y+ \
-
' v9 d N9 t) z! y1 B - digitalWrite(2,0);
: t4 f6 h8 L4 J4 T7 @ - mainAction();; g9 C4 @( m6 d# j) j4 ~
- if (digitalRead(0)){
& r4 Y& B7 p( h$ V8 ?, U - ESP.deepSleep(0);
5 S( }* o& j0 V3 s" l" o$ h - } else {
5 J% n4 O7 ?3 S% c3 w# k - server.begin();
6 N; F% d) R9 R1 y- R+ i- x - }/ O0 ~( A* H* ~9 b1 O! M& h5 ^
- }& }" r L# x; y) F
- void loop() {
1 j# D& s( O$ x - server.handleClient();+ v3 m$ e" S; T/ B
- delay(1);
+ }# ^" N# ~0 f' G - }
, [2 g; I" V0 D; a; | - String doGet(String url){$ v1 S0 E% h& J( b
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! R' t! T9 O7 ? v) E" Z" L - HTTPClient http;9 P# ^) q- n0 w+ B3 W+ @0 a, u
- Serial.println("[HTTP] begin...");
& \* T9 ~' Z9 k - if (url.startsWith("https")) {
: f: t; w5 W7 K* ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( ?' a( R( Q2 @9 l# z8 y# S9 \
- } else {: k( q/ G/ Q- k3 w" Z' N0 z
- http.begin(url);
' N1 v. O6 f( J9 r/ v6 h8 B9 q9 [ - }
4 i$ r+ ^& z4 _0 H" ?$ N - Serial.println("[HTTP] GET...");, I" @! x: R( S1 T1 ^* q
- int httpCode = http.GET();, l# V u. [) {" m5 q/ H0 F" z
- if (httpCode > 0) {
( v+ H8 _8 j a; @ - Serial.printf("[HTTP] code: %d\n", httpCode); D3 Z# w- C# c3 A$ o, t
- if (httpCode == HTTP_CODE_OK) {
1 d& N* M, H3 P - String payload = http.getString();% w2 i8 m4 T- d1 P, g; A, X
- Serial.println(payload);$ t: t# c6 c! ?
- Serial.print("\r\n");
4 D0 {5 D9 J: Z5 j5 M5 z - return payload;
$ \( k3 e3 c, l8 U! e3 {! K9 T; N - }
/ @1 [) X3 V3 \+ a% l# c3 u9 f6 L C - } else {3 l; I0 Z8 w. t, U0 b9 d8 y
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! k& K e. E( Q/ ^ t& {; b6 O - http.errorToString(httpCode).c_str());
' K* {: h) m7 L - }
S w r" c0 W( y - http.end();! J& d# O4 S6 Q& ^
- return "";, o3 E4 x* X8 t
- }/ u* k4 L2 ]' c, }8 K) R+ X
- }# C7 G( X I* @% L
- void mainAction() {
* M: p+ R2 d2 \3 i' r - // 发送请求
5 ?0 t3 F' W* [5 R6 }& b2 j - doGet("http://google.cn");
6 {( i" ~' M# y7 _: g# u - }- x/ Z: D; q) E4 b2 c+ J
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