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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)) {$ ]! s" \( R# Z! X8 Z h
- #include <ESP8266HTTPClient.h>( t( b* r+ Q/ b6 @
- #include <ESP8266WiFi.h>
+ E8 W ^ f9 J4 T- A" a - #include <ESP8266WiFiMulti.h>
7 |0 P$ M+ i" [' A2 q2 x - #include <ESP8266WebServer.h># F3 U( |: U7 z) I
- #include <arduino.h>
1 N) m; O, }7 a - ESP8266WiFiMulti WiFiMulti;
. w) [" ~$ Z4 t* r4 q1 V) E - ESP8266WebServer server(80);
# i- ^% g" c6 O9 M5 l. b: o3 G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( ]4 a( n4 o/ u5 g' r2 z. m! f - ADC_MODE(ADC_VCC);! h1 v, G: O0 R1 G
- void setup() {. v) c3 h1 q8 I; M! r* R. ?. y
- Serial.begin(115200);
9 A, U8 B+ h; x3 |" \+ B - Serial.print("\r\n\n");* U, |+ _& P0 r) ]2 S2 f
- pinMode(2,OUTPUT);+ ~' f' H; @ I' b+ q" s
- // WIFI T5 Z9 G- Z5 h0 C7 s5 K
- WiFi.mode(WIFI_STA);: O; S7 S% ]; [; B2 _
- WiFi.hostname("Sparkle");
( N$ y F& ]. }+ N9 p - WiFiMulti.addAP("wifi ssid", "wifi password");
8 L9 f& ~9 w- O - int tryNum = 15;! p( }# A( F+ s8 k4 \
- Serial.print("Connect WiFi");
( ]$ f1 `4 z- G5 P, H" a( z7 ` - while (WiFiMulti.run() != WL_CONNECTED) {9 z, y! h" t) x; y2 T
- digitalWrite(2,0);
; Y6 ]0 G0 q9 w/ Q3 Y9 Q - delay(200); Q+ [5 q9 c$ u# S y7 l
- digitalWrite(2,1);' O5 k2 Y$ y, f, e1 A
- delay(300);
8 l7 n2 E" q- k3 c, H! {$ C/ p - Serial.print(".");5 C% U" F1 {' a. @0 C
- tryNum--;9 Y3 p6 s7 {3 W3 T
- if (tryNum == 0) {1 R0 O4 i# ?, [! q
- // 1min
; b/ C8 H) y1 i& B7 S2 n - // ESP.deepSleep(60e6);
4 d7 F9 a/ t* x5 B& N! Q% C* u - ESP.deepSleep(0);, I) H1 R. o% u: f) [' Y; {
- }0 C* f( ^+ w4 d! i2 J
- }* H. w. K: F) |7 d; x7 W0 I
- Serial.print("\r\n");* v4 L: `" }; `8 E9 }5 }' I/ H
- digitalWrite(2,1);
0 D2 f/ q, t: V/ t% { - Serial.print("IP address : ");
3 |4 | n" {! r% T. ^, O - Serial.println(WiFi.localIP());( x7 j0 w# n5 j+ b5 \& ?
- server.on("/", HTTP_GET, [](){
- W4 ?* ~, L* x" M s - server.sendHeader("Connection", "close");
$ g" u6 I8 r* I4 s - server.send(200, "text/html", serverIndex);
$ K, H0 p2 p$ p7 Z - });
9 n/ s; Z/ g W. q - server.on("/update", HTTP_POST, [](){) w! |" G5 L$ E2 A
- server.sendHeader("Connection", "close");
; e# C. f ^0 l& _7 { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 ]/ P1 h; q) O z/ M
- ESP.restart();
; e7 u4 A1 O$ ]- z - },[](){
5 S3 S, X" k& F# U j2 k - HTTPUpload& upload = server.upload();7 P4 P4 Y5 S, H* V
- if(upload.status == UPLOAD_FILE_START){& l6 b) u8 U6 b" p7 Q
- Serial.setDebugOutput(true);
3 w, d' W- r- x9 i - Serial.printf("Update: %s\n", upload.filename.c_str());2 U2 ?/ l* d7 z5 }/ C5 F. V2 q5 m! z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& \1 t4 E$ b: m
- if(!Update.begin(maxSketchSpace)){1 n, T/ w( w0 {; u
- Update.printError(Serial);
; [$ {/ `4 m5 ^9 Q - }! n) }" a4 _4 }
- } else if(upload.status == UPLOAD_FILE_WRITE){( n- p& E! v8 q( f6 i y; n
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( K; z8 w2 W1 ^# S' R u, [( E
- Update.printError(Serial);
& w1 a$ Y2 @' r6 W# X - }
+ C# v0 U0 i2 j5 c( M9 m - } else if(upload.status == UPLOAD_FILE_END){
) _ F: l7 u# E6 P& w: t) ]; P - if(Update.end(true)){$ L6 [ r8 p. }7 |8 I& C
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ R" s% p# c& J% m( w
- } else {5 R! o0 G. Z: O! D0 i( k1 |
- Update.printError(Serial);
( D; |6 |% ?; j4 P1 g' G - }" y5 G3 }$ u" {# M# J
- Serial.setDebugOutput(false);
9 V$ s3 ?$ e: S1 P( z! X& t$ o6 Q$ t - }( D* m7 @: i% _
- yield();
- e+ Q* H. s% n& H3 z6 J: ~5 b' [ - });4 ~" t1 @3 n1 S' D* ~% C
-
( l6 ]9 C* ~% {) z7 l! } - digitalWrite(2,0);7 e, O0 U9 i# M2 |. f2 N, H
- mainAction();
4 v1 }: v: r/ l6 x! b - if (digitalRead(0)){
) i! T N! r: H1 B2 `3 k6 d0 Q" i7 _ - ESP.deepSleep(0);! @3 N8 u2 p! w4 x; w) O. E
- } else {; d. I0 w4 ~9 R+ x _( r5 m
- server.begin();
6 C% l% V( _! K% V0 q - }
0 {& g$ q7 z, S+ f, S# | - }$ e7 P; l8 I [" T0 N- O \9 E
- void loop() {
% M8 V* B/ Z; F3 D: F2 v! ~( S - server.handleClient();: m" } k, @' T2 e. Y, u8 x) T
- delay(1);% D n8 Q3 w o5 ]! _% L9 F& H
- }
# G) F* B: X; B7 N# `% F9 P1 M - String doGet(String url){+ A, b, f' W& s- [4 Q1 p4 l& v( m P9 [* K
- if ((WiFiMulti.run() == WL_CONNECTED)) {
' h/ c" I2 m$ |0 \8 \9 ? - HTTPClient http;
3 E o: u' Z9 d - Serial.println("[HTTP] begin...");- e( q X2 W" Q, b: _) k
- if (url.startsWith("https")) {
9 k. m5 I: o1 Y' D8 n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 S; w# p/ O. @- N& m% N& ? - } else {% ~* R7 m8 S$ P* G" n, o2 D/ m5 o" V8 A
- http.begin(url);# W/ Q& A) M& w3 f) b0 }9 E" }
- }2 v; v6 f2 i4 t0 J/ J2 e' f \& }
- Serial.println("[HTTP] GET...");. @1 p# B: D0 O' q
- int httpCode = http.GET();0 a* w( G3 F( W2 A$ s! g* l
- if (httpCode > 0) {
1 n& F: g [, D# E( a - Serial.printf("[HTTP] code: %d\n", httpCode);
1 h/ S0 N- h" X2 v" k: J# } - if (httpCode == HTTP_CODE_OK) { V3 x" O, c4 d* a. O+ t# ^
- String payload = http.getString();
5 W( z- i* Y% C4 [* l - Serial.println(payload);
9 ?; k7 @9 Y, ` x, P) c - Serial.print("\r\n");
$ g1 n3 X8 @% ]; P- I9 O, S& t4 Y - return payload;
& w2 Z6 l9 D( j+ |3 d' Z6 x- r - }
1 C' u$ O( m) y6 q - } else {! ]. W* f" u5 Q7 U2 ]" ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; U5 s& i" N5 Q - http.errorToString(httpCode).c_str());
7 R+ b0 n6 }( q+ \; R) ~) C - }/ X# V2 S% } P/ Z* q0 M
- http.end();
3 ?( l6 ^8 R! C8 G, I. p9 ^0 A" ^: f - return "";! G$ Y' Y9 ^3 C% |1 k! M
- }
8 r( k; ^$ P i1 o/ `9 q, e2 A) | - }
: w/ j2 F8 G8 f+ q9 K8 {0 y- I - void mainAction() {! x! d% n: B/ g: N+ f
- // 发送请求
: [1 ^- _ c" ^' ?6 _ - doGet("http://google.cn");9 G2 l l9 _. n% }
- }
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