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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)
7 c& y& c9 O! S/ i- i" z% D- #include <ESP8266HTTPClient.h>% F9 L U+ p. }: Y, K8 w
- #include <ESP8266WiFi.h>0 F! C/ Z9 ~' P* j8 _9 C
- #include <ESP8266WiFiMulti.h>; J8 Y" y- g5 V: h( v! V1 l
- #include <ESP8266WebServer.h>' v+ w- |2 S' g% r1 h2 ~
- #include <arduino.h>
0 [% _" c6 [( n/ ?: T - ESP8266WiFiMulti WiFiMulti;
8 h% p3 z1 O2 K3 G D - ESP8266WebServer server(80);9 Q3 ]& X8 \0 I6 y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' ], C: z( s) J1 o9 \ - ADC_MODE(ADC_VCC);" F: y2 D \# o
- void setup() {
0 g5 ]8 W; k8 q0 ? - Serial.begin(115200);" i& z% Z) ]0 s( B, ?) \
- Serial.print("\r\n\n");% G! Y" X0 l8 c% k
- pinMode(2,OUTPUT);% E/ |6 c Z( @" Z8 j
- // WIFI
2 ^6 ^$ u/ \- B9 g# Z - WiFi.mode(WIFI_STA);
, v0 v4 K* I* k0 z2 m4 u - WiFi.hostname("Sparkle");
l$ r5 P8 j: d- b' [3 o, i - WiFiMulti.addAP("wifi ssid", "wifi password");
. G% i2 Q, J! H+ |* [. u - int tryNum = 15;, P) c9 |4 B8 H1 B7 {
- Serial.print("Connect WiFi");( o8 n* P' ^# v. \. {$ T/ i9 K6 w
- while (WiFiMulti.run() != WL_CONNECTED) {
/ N# [5 `( w0 @; c - digitalWrite(2,0);" i* _% [& K2 k% m0 e
- delay(200);( |. k2 D$ z; h9 q; t" v
- digitalWrite(2,1);
: Z/ \) s/ e: w5 }) |& ~ - delay(300);
8 e% T, h$ g3 d# q - Serial.print(".");8 X. ?) J( H C, E& b- o% e
- tryNum--;
1 b- p6 F/ o8 T- ? A: E% s E - if (tryNum == 0) {
8 k& V. h: ?# ~# q - // 1min9 Y! e5 E) e) [* ~! z
- // ESP.deepSleep(60e6);* \, Z% J- F4 }$ y, l- H
- ESP.deepSleep(0);: C; _7 Y( h3 T/ b, w" _0 v
- }: c! \/ W% ^+ W0 Y3 W
- }
$ p( y' _ j ~1 q! t - Serial.print("\r\n");
5 N3 u/ g0 o) s1 q4 y" E - digitalWrite(2,1);
" x$ [+ e" T- Q. y# Q' F - Serial.print("IP address : ");
# |% z6 E* Q8 u$ l: p- Z# q9 x - Serial.println(WiFi.localIP());
5 H" E* ` S1 `3 b* p6 D( u: z - server.on("/", HTTP_GET, [](){0 e) b1 u- I& s! t3 Z' n
- server.sendHeader("Connection", "close");2 g9 @( z G& J; F) Z% _5 E+ r5 v
- server.send(200, "text/html", serverIndex);
1 Y& Y) d' Y1 I( a; K& ~- C9 v1 f - });( U: \! q1 _1 L2 F6 J: X
- server.on("/update", HTTP_POST, [](){# j: a. C; C" x, s4 y+ A0 ?
- server.sendHeader("Connection", "close");
8 c; @3 {2 K: }" b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! N3 E& o5 w( K+ A9 j - ESP.restart();
J% F- J/ w; F6 _) | - },[](){3 u3 E d Y3 B! T3 ?
- HTTPUpload& upload = server.upload();3 U! H" P9 j$ y
- if(upload.status == UPLOAD_FILE_START){
8 _+ ]; Q5 o) R9 _% [) t - Serial.setDebugOutput(true);
7 [' R2 g7 `# p: n& p+ g0 W - Serial.printf("Update: %s\n", upload.filename.c_str());
- R6 x. Q/ U" f+ X - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' l) R/ B8 D z% O) n; R9 R - if(!Update.begin(maxSketchSpace)){
% V& O% A, Y- |: ^: u - Update.printError(Serial);
( A0 A# C( }% I+ ]3 V - }
`2 A% C* E$ h3 M& G4 w+ m - } else if(upload.status == UPLOAD_FILE_WRITE){
9 V. l) X. {" W4 J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ M: C4 x2 \ X: w; H0 Q - Update.printError(Serial);
8 x5 e4 n* e. ]4 o" S - }
* K6 U6 [ D9 L - } else if(upload.status == UPLOAD_FILE_END){% h1 D, z2 F7 R- _$ M! Z; X z/ T4 i
- if(Update.end(true)){7 n+ f6 S7 {1 D- J* E* d( M& b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 C/ O/ d \% a6 n' X5 e+ M
- } else {) G) t: p8 ?" A
- Update.printError(Serial);
! b6 S5 B1 m& y8 ]" [' a* ^ - }
9 M1 N3 g4 b" g4 D& U, v - Serial.setDebugOutput(false);6 D4 o7 Y/ V6 r j! {
- }3 N- Y8 c w4 j2 F) ?, P: |2 q
- yield();) h4 U, s [7 ~4 ?" C
- });/ Z$ U) d& D4 a! w
- 1 s/ W! l% l8 t. L$ Q6 u N+ {$ [2 Q
- digitalWrite(2,0);
" m4 P5 Q5 O( i# U- s" u5 E: m$ e - mainAction();4 r4 y' H' w. e# z+ w6 L2 V$ [" z
- if (digitalRead(0)){
2 e8 n( {# u v+ ]% U3 |) \ - ESP.deepSleep(0);
% J* G- f$ K/ X9 T1 w - } else {
" ]* r' f- J! G) v4 ^% b r& ~: j - server.begin();( m/ R7 d$ X0 ]. s/ p6 W
- }
& t- ]2 j$ y: o& K. { - }2 ]% Y% u, d9 h4 g8 `
- void loop() {3 K( T) ~+ r6 y2 W$ z
- server.handleClient();, K1 w/ _3 ]. M0 Z2 Y
- delay(1);
$ }. f( f& b; |9 G6 U" o - }' R0 a, [# D7 x/ ~! {! J
- String doGet(String url){3 R/ j D6 a7 c* j! b/ m
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 f2 p! ~+ O v, G. A9 N" L) [! } - HTTPClient http;; t3 }3 A4 L1 t
- Serial.println("[HTTP] begin...");
, \3 h0 Q- K/ z2 c - if (url.startsWith("https")) {
% V7 }' g. A5 B0 _! q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ t4 |: L% \! A
- } else {
2 t3 [1 }: L( X) z - http.begin(url);( `/ G$ E4 @: O4 A7 i8 q
- }. U; u& q ?5 l+ S. ] ]$ \
- Serial.println("[HTTP] GET...");
4 y8 Z' B) ~; j# |9 g4 T - int httpCode = http.GET();
4 J, D ~4 ^; W& l8 v2 m2 H - if (httpCode > 0) {
4 D; N: b% d8 _' b8 {' _ - Serial.printf("[HTTP] code: %d\n", httpCode);7 ^+ U% `: K$ h5 N+ Y' j0 i! v1 k/ ^
- if (httpCode == HTTP_CODE_OK) {/ C& i* |) }5 T9 b0 ?9 D( B' f
- String payload = http.getString();1 a4 I% V& G% P
- Serial.println(payload);
0 f6 O' K/ O# ^" O - Serial.print("\r\n");
; L* C9 J: C4 Z; s - return payload;
) F" g% E" l I& q - }+ u7 Q) Y* u1 X6 j
- } else { `$ ]& U' P( }
- Serial.printf("[HTTP] GET... failed, error: %s\n",( ?4 o! N7 H. ^- [4 V8 h- x* G% {* q* t
- http.errorToString(httpCode).c_str());
1 p+ p& N3 L" t( V - }3 S- W: [% ?" ?1 n9 S- Q
- http.end();& E) B& y0 e; y M& |# A0 y4 Y5 O! E' \
- return "";2 I" V( j$ k7 U2 t" a. Z, F
- }( j! O, e& R) n) q! A2 X* H
- }" |& F7 Z$ @6 p
- void mainAction() {
' O K9 _; A( E+ O2 W - // 发送请求
+ J% a' j3 P. ~1 H- x1 ?9 K - doGet("http://google.cn");+ u5 a: X7 v# x
- }
# M# |. U* |1 c$ V) F* G A$ _/ X
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