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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). I* v7 h# `3 a) c8 U* x* n3 B
- #include <ESP8266HTTPClient.h>
; V+ O/ l* K) \+ l" A - #include <ESP8266WiFi.h>! a; q! c. F. K/ A
- #include <ESP8266WiFiMulti.h>0 ]2 z7 h3 F, ?- {6 o# F! S$ _
- #include <ESP8266WebServer.h> A1 o9 g$ H& ^2 j$ p* {) m
- #include <arduino.h>- n% Q0 n7 I8 z0 |9 }6 h% e i
- ESP8266WiFiMulti WiFiMulti;
$ f" @- b4 K( z5 ^ O - ESP8266WebServer server(80);
9 R6 n$ N5 e$ c1 I - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' N4 |) j8 d, C+ P1 p a
- ADC_MODE(ADC_VCC);
) ~4 r1 C0 S" F' G8 I9 i - void setup() {6 d$ m* m4 L, {4 v4 F- @( K
- Serial.begin(115200);& s# c1 N% [ Y# V. \6 _. T
- Serial.print("\r\n\n");) l& G- l( I$ Y9 Q- i, [1 Q. k
- pinMode(2,OUTPUT);
7 o& w( L W5 N) q% S - // WIFI5 A: ?7 u3 ]9 x1 Y
- WiFi.mode(WIFI_STA);6 ^" h( A# ~( c9 r5 m
- WiFi.hostname("Sparkle");' G, G, a% O7 V$ a/ Z/ y
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ @. x3 }7 _$ E9 H/ a% y - int tryNum = 15;5 C3 I6 n) A& d0 ^
- Serial.print("Connect WiFi"); D# r4 k" R, Z: K
- while (WiFiMulti.run() != WL_CONNECTED) {# g) l2 N$ q2 M0 X. I7 G3 C
- digitalWrite(2,0);
- ^6 W8 Z) M3 ?4 R - delay(200);
7 x& ]6 _$ o$ V3 I8 V - digitalWrite(2,1);5 X; p+ @3 A; e5 M- x4 M
- delay(300);
0 Z2 x; s, o7 d$ m- g# d - Serial.print(".");, V Y- r8 w9 n u
- tryNum--;# L, A" q# u8 g9 q* r: s) x
- if (tryNum == 0) {
, M! d: B3 a- b4 p( k - // 1min
/ |0 x# ~5 ^% W - // ESP.deepSleep(60e6);7 V7 {6 ^! `; _( E! _, }2 v$ b! ]# ?
- ESP.deepSleep(0);
( |; w8 X# ^6 S - }
$ j5 r3 |6 a8 @/ I6 s - }
; g/ B: W8 Q8 Z& `1 M - Serial.print("\r\n");% l4 Q9 n; O8 V/ n! a
- digitalWrite(2,1);
; @( p/ ]; m/ v: w - Serial.print("IP address : ");( c5 s' Z, p1 N& ?
- Serial.println(WiFi.localIP());3 M5 T" x+ b3 k# v
- server.on("/", HTTP_GET, [](){
% y, K+ x" T: Z - server.sendHeader("Connection", "close");
% |# v' \ p. |9 ]0 y - server.send(200, "text/html", serverIndex);9 G) s. e3 _ ]0 L) g0 I# p" Q/ ~
- });
8 k5 n0 {/ x& J3 @9 [ - server.on("/update", HTTP_POST, [](){
! n2 D# o8 J# N9 ^ - server.sendHeader("Connection", "close");) n i8 `. M q& Y4 e5 o: H; J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 f8 t; _6 @' z% F( @2 g! z; @8 G - ESP.restart();. d8 B W: o [, \5 q8 }
- },[](){$ w% ~" B4 _1 |0 K4 N; G
- HTTPUpload& upload = server.upload();
( D" a: n0 i9 l$ M/ o" `2 M; b - if(upload.status == UPLOAD_FILE_START){
* Y t/ r$ K$ _+ N5 {8 h( K - Serial.setDebugOutput(true);
$ n: T7 Y3 G3 p+ K+ w7 X - Serial.printf("Update: %s\n", upload.filename.c_str());
/ W+ w, G- }' Q5 Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' Y9 Y# c( `' E; q - if(!Update.begin(maxSketchSpace)){+ C9 b+ p# Y+ M6 I5 F
- Update.printError(Serial);& r4 N" |% ~$ K( U, R& `
- }8 y; b6 t: K# p8 f8 H; Y7 p
- } else if(upload.status == UPLOAD_FILE_WRITE){0 F) U9 X! o; I8 x
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ Q4 r: _4 U" _7 ]' }$ `6 x; c/ q - Update.printError(Serial);) k) h; V, A- P! f" Q0 T4 A
- }3 U9 d% K3 S# Y1 `( z
- } else if(upload.status == UPLOAD_FILE_END){+ `) z8 K/ H$ g2 S
- if(Update.end(true)){7 P; z$ k# T z. D& V; w
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; h2 Z7 [7 B$ [$ D& r/ L" {& W - } else {# p) F# R, v! B& Y: s
- Update.printError(Serial);
* U j* \* |4 H" J6 j2 j. n& P - }4 _( h+ ^$ d6 y2 [
- Serial.setDebugOutput(false);
4 {# L' _; X2 x; p# Y5 g - }8 D* A9 U9 L% R6 M" ]+ }
- yield();9 F/ x3 n8 y8 j" [; N' l) Q
- });
. _( O3 _) Z5 W: e7 G9 ` z* ^ - % N+ ]* B0 ]. W9 L% O v3 ~
- digitalWrite(2,0);/ }9 |+ Q; o9 p( W" X7 U0 v
- mainAction();
! Z* D' e# G+ j& a' M - if (digitalRead(0)){( |1 [5 `' ^! }8 L: o& J& U
- ESP.deepSleep(0);5 i; M" o- s2 |. t, G
- } else {
q* R7 B" y8 O) V R* r1 `4 I' D - server.begin();
% A3 M2 ~8 O2 } - } Q( D* B+ x. g7 B/ b, D1 V
- }
* u# ~ t( P3 s7 J/ B+ I" \ - void loop() {
1 F4 N0 j" C3 t& E8 [: o- c - server.handleClient();5 z z. @$ F0 p n: S1 t* x
- delay(1);2 q. {& V+ N8 k, |( P& J7 ?
- }- G1 q3 \, f" |7 n3 h- h- V5 L
- String doGet(String url){
9 B% p6 W) Y' K; J* c- j8 u0 } - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 e& @4 Y8 |, K2 g - HTTPClient http;
4 z5 I8 c: y! z' F7 q4 ?0 M( ^ - Serial.println("[HTTP] begin...");4 o3 {/ F. s, k
- if (url.startsWith("https")) {
9 w( ]) b6 H" o; T( G: S0 J# d- m - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( _( @( @: E7 ~
- } else {' D# {5 Z' n' T8 w7 I
- http.begin(url);% h; R" I1 T1 l- {" r5 B! l
- }$ D5 V3 o0 w, F; k% m
- Serial.println("[HTTP] GET...");
. _6 E2 B' }, v* a5 [' @+ r; d - int httpCode = http.GET();
0 M2 ]+ S2 s5 U; T4 o1 u) [ - if (httpCode > 0) { c6 x' Q) I+ }
- Serial.printf("[HTTP] code: %d\n", httpCode);
- c1 _+ r; c ] - if (httpCode == HTTP_CODE_OK) {
$ ]6 {: c" a* M7 o$ m- d - String payload = http.getString();- n, Q7 N# ^2 d1 [
- Serial.println(payload);1 i6 g1 b8 S+ i; ^- O
- Serial.print("\r\n");
2 q( M6 ]7 c2 p2 t- Y - return payload;
: n* F6 `" Q1 A& D5 S' b* o3 r - }
! e# o8 Z$ _6 G: g# B$ R& w - } else {
8 c6 S6 m. m5 L9 B, M1 W5 ` - Serial.printf("[HTTP] GET... failed, error: %s\n",
& ~, c% K/ f& ]- I0 }* v - http.errorToString(httpCode).c_str());
0 V, e5 W8 u* l - }$ |4 B; n+ @ Q& z/ x
- http.end();
$ e" x4 ~! |) |* X) e0 F% m; L - return "";6 O0 ~+ a1 B8 q1 h- g
- }
7 J" \* R( R; w+ s0 b% {1 @ - }/ Y2 f( X% W; \4 H6 l, q; K! A
- void mainAction() {6 V+ m) b. `8 R
- // 发送请求
6 D$ N/ S/ g) l# b" `7 O - doGet("http://google.cn");& R( N4 B* r7 C' G5 I5 F3 G+ {/ t4 H
- }) Z& r6 ?% p; H }+ i
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