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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)
6 l9 q, \& X+ \! U* G- #include <ESP8266HTTPClient.h>
+ Q: T4 A5 j1 K4 b% i0 A& z; J - #include <ESP8266WiFi.h>
. H$ X/ }) v# M# x+ I' f - #include <ESP8266WiFiMulti.h>5 s5 e0 i# t' a; N# Z8 e) B- Q
- #include <ESP8266WebServer.h>3 A1 B5 g2 q4 ?! A
- #include <arduino.h>
" k/ H3 F' [. d5 [( g; C8 Q - ESP8266WiFiMulti WiFiMulti;
* i( F3 Z! p' ~5 g - ESP8266WebServer server(80);2 ^ y5 @$ ~( z1 J6 o' r% U) ?' S2 [
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 ]( @( Z% s& ^7 k- e3 C' T. A
- ADC_MODE(ADC_VCC);/ @! D5 p& \; }3 B, U9 _
- void setup() {
5 H& Z' v6 a. `3 m, o - Serial.begin(115200);
) l4 m- X- Z+ x: _ - Serial.print("\r\n\n");3 Y! ?9 s7 T- d$ k1 f* h
- pinMode(2,OUTPUT);5 ~* h3 ?& v/ x
- // WIFI7 D- n1 V+ |/ A U& N0 c, l- `0 B
- WiFi.mode(WIFI_STA);
5 e- `% _0 G; X6 q Z4 k# ^7 d - WiFi.hostname("Sparkle");1 |+ K4 X C# L
- WiFiMulti.addAP("wifi ssid", "wifi password");
: O# |; }: ^* B: T7 W4 r, z - int tryNum = 15;0 @& g% p: J2 v$ G% D
- Serial.print("Connect WiFi");
& Q4 o- t- ~& o - while (WiFiMulti.run() != WL_CONNECTED) {
. l7 \! R( W9 m - digitalWrite(2,0);* k% u% [' \5 V
- delay(200);
4 M8 l- H9 k& Y# X* h( }. e2 i - digitalWrite(2,1);% i `, E4 H" m$ C/ M- ?, k
- delay(300);
7 O, |- d! o" K; ^/ A2 u - Serial.print(".");
% u( x: ]; ]; R3 \; T! s - tryNum--;7 ?5 C. }7 O: n) A# ^2 h0 \
- if (tryNum == 0) {
- M5 O. C" S& f0 l1 b) p - // 1min& }! t6 y6 G, X9 _( f
- // ESP.deepSleep(60e6);+ C) ]& A5 \$ Y" V
- ESP.deepSleep(0);
2 p# `9 W% S, Z {/ u6 X ? - }
& a8 W8 g( u; w. m; ^, T% q - }" I/ q/ J7 O+ k3 P. _; i& P
- Serial.print("\r\n");. _# |& D1 z: s& V
- digitalWrite(2,1);8 U; C1 k" ^! s/ W) w: J: o, x
- Serial.print("IP address : "); d' O/ s+ `% j
- Serial.println(WiFi.localIP());
0 e& N0 T. m1 ]0 B, d$ A - server.on("/", HTTP_GET, [](){
/ d) C7 [) n- {/ O8 S/ n - server.sendHeader("Connection", "close");4 C; x( A# ^: H8 |3 Q, M
- server.send(200, "text/html", serverIndex);" u$ y5 ?0 p/ c7 N
- });
) D5 D C6 {0 j% n9 k" I - server.on("/update", HTTP_POST, [](){! l1 m$ {9 V+ I: x( |6 N+ |7 ~ M0 I5 Y
- server.sendHeader("Connection", "close");
' C9 H& ]; l0 f: T- @% ^1 }6 S - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 K* O! n+ o1 f0 S1 ~, P* ] a% b - ESP.restart();5 O# p- u& I2 Y
- },[](){" a& h/ o% S, b( s# g) I
- HTTPUpload& upload = server.upload();* B: r6 c! b; z( d: `8 R: o* K
- if(upload.status == UPLOAD_FILE_START){/ {. f3 G1 B) K) ~ p
- Serial.setDebugOutput(true);: [, [1 X: k$ g+ b% r" }
- Serial.printf("Update: %s\n", upload.filename.c_str());, @$ ^1 z; E9 {7 i1 h' q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 a1 J6 }) x$ r/ V( }1 I1 t
- if(!Update.begin(maxSketchSpace)){
4 o7 r5 g0 P8 v. z/ p1 d6 q - Update.printError(Serial);
* j5 p. O6 N4 B( o) p* Z3 Z4 [3 k - }) q6 S3 z6 T) L2 p2 a0 _; c- E( w& P( u
- } else if(upload.status == UPLOAD_FILE_WRITE){
+ Q; T3 e, o* q6 B( y# Z* `- M' W - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
T( a5 i, f7 z: | - Update.printError(Serial);) h& e2 f) H1 }
- } }+ \& e0 J; j9 |' `/ t
- } else if(upload.status == UPLOAD_FILE_END){: ~4 ?* S+ n$ l& P- [ a
- if(Update.end(true)){0 ~- t, _* L2 M
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);8 a# P5 \0 N# {- F j
- } else {4 K( X/ d2 A9 ~: e; [
- Update.printError(Serial);
! e1 e7 d' C/ H8 `3 o4 M - }8 O3 s& H& ^: i$ r9 A8 ]; h; [
- Serial.setDebugOutput(false);; F6 c% y4 J0 h, a! _4 v2 B* \
- }
* R- D. T+ r9 X8 @. a - yield();
/ g3 x" L1 u% ^- {7 P, l - });$ v, [8 ^4 K" R K! j7 D
- 5 |' y, z- x3 H
- digitalWrite(2,0); D1 F# Q, R7 {# j' {1 e
- mainAction();1 C; Q( j# F( `5 _$ y( i
- if (digitalRead(0)){
( _$ [' ~* L0 V4 Z - ESP.deepSleep(0);2 ]: e/ n* \" V8 |8 Y) I8 Y7 W
- } else {4 U* N: l2 V& P
- server.begin();
" h+ l0 I( U. r( o# P3 G5 z - }8 D( h% @- K# G# L8 `3 b5 S
- }
3 Z# G l# Z* U. R8 x" l1 t - void loop() {2 ]" D f- w+ }$ o
- server.handleClient();
1 M; ?0 n) v. G2 Q - delay(1);+ m; \; Q2 P$ G& s! L
- }
^- b/ u7 J% R - String doGet(String url){) g; d0 C9 R% J# Z' l4 `
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 c4 R1 @2 t$ j# g& p
- HTTPClient http;
) S5 U* R' B9 }9 d4 E" Z( K - Serial.println("[HTTP] begin...");
' {) M% C, U' p3 y; G: A - if (url.startsWith("https")) {, o, X/ f4 M/ s, i2 f8 }$ j
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) d* c9 d5 n6 B2 u) ^
- } else {; X; u; V8 P8 [+ _' k
- http.begin(url);
/ f7 l/ m- ~' b/ M+ u - }
% z& i1 n0 D5 [( b7 r4 _( W - Serial.println("[HTTP] GET...");; g) p! H% K( n! }9 v
- int httpCode = http.GET();
8 W* Y6 V9 j6 t, _' f+ @ - if (httpCode > 0) {9 y$ U; P. l' j; i4 J6 T
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 i1 Q/ d' I9 c - if (httpCode == HTTP_CODE_OK) {. Y0 z" `3 b p/ W
- String payload = http.getString();2 b8 s0 o, N& @" h* x5 ?. S, Y
- Serial.println(payload);: s; L/ o1 e8 s! t$ P5 ~
- Serial.print("\r\n");
: m( ]' a8 R# U+ V# Y8 ~- o - return payload;. n+ d C( N( u1 R4 W+ |4 F. `$ A5 l% D
- }4 }, q% G. D1 c; ]' P
- } else {4 d& U7 m" u# Q B
- Serial.printf("[HTTP] GET... failed, error: %s\n",( h& c4 b6 R) c0 g- i( U
- http.errorToString(httpCode).c_str());# c. r& x/ M* j/ X
- }
0 Y' L4 ]0 x+ Q6 D2 z - http.end();( u9 }! ]2 v6 L) |: F
- return "";$ M. B1 a9 F: S+ N
- }
9 s# O$ @) ^; O# T& |' D0 j - }
- S% w% g/ [0 M9 E( B - void mainAction() {6 P. A) P$ h# D1 n
- // 发送请求
; A6 |1 v( { I# d8 T3 j' s C - doGet("http://google.cn");
" K7 }8 I/ M2 \8 a6 Q0 B( w! Q$ _ - }
' ^) `) I* `# T$ g) n
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