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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)
* O3 z( p1 h: ^& g- #include <ESP8266HTTPClient.h>/ a; i; ~% \: a/ m7 g- L
- #include <ESP8266WiFi.h>
2 G) Q. k- I+ P7 _) X) \& \ - #include <ESP8266WiFiMulti.h>
5 }( }" O0 k. \) W5 o, D& T: i0 u - #include <ESP8266WebServer.h>& d# y* F, f+ t8 {& {3 }# `4 u% E
- #include <arduino.h>0 d5 g1 y L' w% A
- ESP8266WiFiMulti WiFiMulti;- h; b* ~; D# D# [
- ESP8266WebServer server(80);
' P/ U+ H! J0 V& v0 V7 Q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: D- ]6 B! V9 y) Y - ADC_MODE(ADC_VCC);
6 a E w; {( t8 v - void setup() {/ L7 l5 D' a8 G$ B& w
- Serial.begin(115200);
& C. i h( h1 J+ Z. x - Serial.print("\r\n\n");, H; b3 t) ?6 q, c2 O
- pinMode(2,OUTPUT);9 s+ N' x2 k K# H- q$ m
- // WIFI
5 a: m( ~$ o4 s - WiFi.mode(WIFI_STA);( A- e' j: X, J; F
- WiFi.hostname("Sparkle");
' F6 g2 g |( R% N- n0 } - WiFiMulti.addAP("wifi ssid", "wifi password");
/ S! j- a3 C8 }9 H" U' q. D3 p - int tryNum = 15;/ i) Z3 R+ g0 l/ d$ S% {4 X3 W
- Serial.print("Connect WiFi");
1 l3 W* F, W+ L* ?# C - while (WiFiMulti.run() != WL_CONNECTED) {( G/ U$ R1 j, b/ N: _7 l% P' t! R
- digitalWrite(2,0);
9 L1 O/ Y% C8 Q0 D6 y. [7 C# ]8 R7 P0 ] - delay(200);
% B' m! B. a* q$ l# ^2 s - digitalWrite(2,1);
. \2 D" t# E( _3 P - delay(300);
; z6 X2 y: K$ i# [ - Serial.print(".");
- { q& N! S9 N6 | - tryNum--;: b2 z& I/ G- j1 V1 S! e
- if (tryNum == 0) {
" _8 i' F2 X( ?; R5 x# A - // 1min
" z$ }& V( U% W - // ESP.deepSleep(60e6); ~* p+ y7 n5 U D Q; a
- ESP.deepSleep(0);
2 L# O* Y. c$ O, ? - }. h; {9 @8 D9 L$ m: l9 e b4 I
- }
7 M" R7 k) s+ R: u0 y - Serial.print("\r\n");
) Y/ L D$ l4 i$ b9 _ - digitalWrite(2,1);
" G5 V# d7 O6 | - Serial.print("IP address : ");. K4 E, N5 ]* M- T; V
- Serial.println(WiFi.localIP());9 q/ m- D: i! F5 P2 I
- server.on("/", HTTP_GET, [](){
5 i& a5 d6 Y- s1 }0 K - server.sendHeader("Connection", "close");) \2 n {7 Q, o% D) _1 h
- server.send(200, "text/html", serverIndex);
- b0 k; e8 z7 y3 i* F7 ~ - });
X* @/ j; x# a! I - server.on("/update", HTTP_POST, [](){; E" g e8 J! a5 [: T0 `$ Y
- server.sendHeader("Connection", "close");
( o6 ^3 a- v: O8 D& {% b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- c+ f S* G4 C* [ - ESP.restart();
* b, f) |% t! W7 Y, w! P1 c+ L& i5 t - },[](){" C0 j, Q/ z) j
- HTTPUpload& upload = server.upload();
. O u C8 t( F! d' h - if(upload.status == UPLOAD_FILE_START){3 c- J' a2 O3 t z2 O2 f5 N$ n
- Serial.setDebugOutput(true);
* R9 N4 _. ~) b9 U9 C! R5 O - Serial.printf("Update: %s\n", upload.filename.c_str());. O7 e: }4 M+ e, J% j6 |
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 K: Y& y% O3 g
- if(!Update.begin(maxSketchSpace)){
4 `& B+ `5 t Y4 o2 j6 b - Update.printError(Serial);+ x/ o" s9 K" v* j
- }
^7 z6 i9 q. w - } else if(upload.status == UPLOAD_FILE_WRITE){) f6 s" B' v3 V9 f6 {1 z; \ l
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( I# E$ t( h, [. |
- Update.printError(Serial);7 X: n, g( C! ]5 ^- P
- }% K/ X' ~4 ^% q) o9 {
- } else if(upload.status == UPLOAD_FILE_END){
" U! B5 w# W& u3 E s4 m/ ] - if(Update.end(true)){% d! Y+ F0 x. c2 a' p
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 P7 N9 j( S) W3 p% B0 ]' P0 k - } else {9 |& N* o, Z4 `9 y
- Update.printError(Serial);
/ O P' e$ f' B( N+ m3 ] - }
1 S N/ l7 m6 o - Serial.setDebugOutput(false);
5 `3 O% u' h( a$ L( _- B2 G9 M- g6 P - }: z0 X6 K7 X+ d8 s9 x
- yield();0 X8 a: v1 c; a/ L2 E( i
- });
3 T7 z, `5 \ \* y+ m l, L. E3 ` - , u/ @' ?7 o5 _
- digitalWrite(2,0);
, f7 I) H" M" k. z* W' d - mainAction();
+ G: R: d: s' ^( I1 x' a) x% g% F! r) R - if (digitalRead(0)){
& _4 D! b( g: k - ESP.deepSleep(0);
$ h* H; X9 D4 |" o& w2 e. f! t - } else {
3 n4 B( |- e! ]3 u7 p - server.begin();
2 p. W: @5 j7 C+ K8 |, g1 j9 n - }+ @- T3 H5 E* z4 c
- }
" a/ z+ F1 C0 Z0 C - void loop() {
& m) S i" j! V* P6 O1 R [# } - server.handleClient();8 v- L( A, m; `; b' ~
- delay(1); o# ], ?! q4 Y1 M+ V& P
- }5 B# I' d+ h; c0 F
- String doGet(String url){. v- S% M1 ]6 o$ N ?, }2 Q$ V
- if ((WiFiMulti.run() == WL_CONNECTED)) {
I! F" g0 C: O8 P% ]/ Y8 [3 Q4 N0 ] - HTTPClient http;
h( w8 q! U4 G' @, B - Serial.println("[HTTP] begin...");) {) |1 G e7 [. M/ K0 L P
- if (url.startsWith("https")) {0 P* `' _ W, f1 F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 _& T# i4 A# f6 k1 [ - } else {
$ d k* W( X- o - http.begin(url);
& e. }3 w: e9 I. U3 q4 T8 S - }% d. c G8 p5 q
- Serial.println("[HTTP] GET...");( h/ N* R( M: y* c& a `7 r: ?! @
- int httpCode = http.GET();
- G8 P, X. a1 r- S7 x2 Q1 l! O - if (httpCode > 0) {
8 F# r3 @- k- ]1 N5 Q0 Z - Serial.printf("[HTTP] code: %d\n", httpCode);: P6 }& J6 k, c8 o
- if (httpCode == HTTP_CODE_OK) {- F; d3 D( O. x* M2 |
- String payload = http.getString();* b5 w5 C' b7 c% P
- Serial.println(payload);
" v7 N0 ^) Y5 F& k - Serial.print("\r\n");
8 ]1 |0 o1 l1 H( N - return payload;' x7 x3 K9 f4 Z0 x8 k
- }4 o: r; O) q' y0 M
- } else {
% n; N+ X0 m; D) V' } - Serial.printf("[HTTP] GET... failed, error: %s\n",( ~8 H2 J9 a" h5 R
- http.errorToString(httpCode).c_str());
, J$ n: u' H2 n& j% n - }& r4 a$ y2 ? o- A0 z
- http.end();
- b* F: o& @( k5 \6 p: P - return "";
+ O5 l- T. n4 N% e2 v0 X - }
8 \9 O( c+ q/ y) M/ a - }8 u& q [" R9 U9 L9 P
- void mainAction() {
2 O% d$ y% r6 ^9 O2 o* S- J - // 发送请求
1 d# z/ V6 a% f- y( Y7 X( G - doGet("http://google.cn");+ _5 b' U9 ]9 z, _4 i
- }
+ Q& v( j/ k3 D2 \5 d
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