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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)$ ]/ N: m) Z* w
- #include <ESP8266HTTPClient.h>" d9 |9 B' S8 b& ^# H
- #include <ESP8266WiFi.h>
" W' C l$ t0 \; f/ |, d - #include <ESP8266WiFiMulti.h>2 ^' i& \- N( g7 A& s( V
- #include <ESP8266WebServer.h>
$ j$ x7 f6 f# e# D - #include <arduino.h>
Q1 S6 ~; [% J. a( Q - ESP8266WiFiMulti WiFiMulti;/ M: k: @& |3 b# i7 F' t
- ESP8266WebServer server(80);+ @7 s$ | o5 L# T! E
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! H0 X. k( R/ z# @" g- a& A, @6 V - ADC_MODE(ADC_VCC);
1 ]! R9 s% a' H7 b - void setup() {
) m8 C5 i! w/ n( I% n( I - Serial.begin(115200);3 B3 j T' S) p# P2 g3 n% ?" R
- Serial.print("\r\n\n");
/ O7 C: A7 c" B( G+ @8 { - pinMode(2,OUTPUT);
2 s9 m( I4 R5 n2 D4 Q4 p2 u: m - // WIFI7 T1 @% v, k+ R* P
- WiFi.mode(WIFI_STA);9 W% g' Y+ O" V1 t( k1 {
- WiFi.hostname("Sparkle");$ ^% l& C2 e5 O
- WiFiMulti.addAP("wifi ssid", "wifi password");& b4 t- g0 w: O7 I8 F
- int tryNum = 15;
* u7 ^5 H* |1 c( F, Y - Serial.print("Connect WiFi");, _. [. \1 r4 I" x+ t2 Y+ |$ A
- while (WiFiMulti.run() != WL_CONNECTED) {
9 M8 I7 E& R& t+ R - digitalWrite(2,0);
4 |) R/ ]; @5 H6 D4 A - delay(200);
% a9 c+ h4 [, L4 W+ \3 d - digitalWrite(2,1);0 P. u! d/ |: ~6 S6 W
- delay(300);4 V- F/ N+ f6 n8 w0 }7 s
- Serial.print(".");0 l6 ~5 O* o- Y& `2 R2 \
- tryNum--;4 h3 ?4 L9 M# K: C Y& o$ K
- if (tryNum == 0) {% B/ |0 r7 O0 t3 W) h
- // 1min% d6 Q2 I% l4 T
- // ESP.deepSleep(60e6);4 l. u* F' `2 ~- x. ~1 b" P; G
- ESP.deepSleep(0);* s: X$ }5 c& i
- }( q; ^4 c" K6 [) y- v
- }4 X8 A% ?! M5 C) l
- Serial.print("\r\n");' W0 r! p/ @# E6 t
- digitalWrite(2,1);! I! L; {. z7 j2 ~
- Serial.print("IP address : ");
8 q& F2 H# A; H5 ? ]/ q - Serial.println(WiFi.localIP());( Z2 \& B# c m$ C @ ]
- server.on("/", HTTP_GET, [](){
% B+ `4 W* T( p* r8 U# z - server.sendHeader("Connection", "close");8 S' N- b+ a$ O1 ?! Z7 x
- server.send(200, "text/html", serverIndex);
! z# a1 E- t$ L6 t# L+ K/ V' D8 | - });
% s' U7 X4 v7 ^- }8 F0 z - server.on("/update", HTTP_POST, [](){8 m, f. v6 I* ~! B
- server.sendHeader("Connection", "close");
A' g) _- e! g7 j6 t7 |3 s N, e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
^( R1 {( \: I - ESP.restart();8 G6 |0 a7 x u# W, N+ t' d9 y) F/ v
- },[](){
: p7 g' W% D$ T, J. h+ q" V% R - HTTPUpload& upload = server.upload();
9 \$ ` ~3 i9 o- _' J - if(upload.status == UPLOAD_FILE_START){
6 t3 R7 I8 M" f! U& C - Serial.setDebugOutput(true);, f0 K: u/ x& T( q! z7 r
- Serial.printf("Update: %s\n", upload.filename.c_str());0 q' h7 n0 _3 `/ s
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 m# x8 U. R; Y
- if(!Update.begin(maxSketchSpace)){
3 [7 R/ o: t+ z2 g8 R* L - Update.printError(Serial);
4 L1 H# l1 z$ B! N; r - }; J* K: S- d' n+ Q9 a
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 }$ U, Y- m. o) G: c! h8 t - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. t' g, f/ \( H. o
- Update.printError(Serial);! W+ k3 l; A) W5 T
- }6 u9 i& R1 g" f+ b5 K
- } else if(upload.status == UPLOAD_FILE_END){1 M2 M( K! R# L7 p. s m$ o; H% Q9 I
- if(Update.end(true)){
; \7 _3 X! t7 B+ x7 Z( x4 J" y7 R& n - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' Q/ x8 x) [" F - } else {
/ K( Z5 A$ Z/ m/ j. d2 ?' } - Update.printError(Serial);
/ l. b6 n; t% V - }
; \3 e/ }& o/ s3 C3 P4 v7 E - Serial.setDebugOutput(false);
^* u% w9 ?. z. Z - }+ \( _* x& t* g" w
- yield();* W/ ?. }5 V% S- c) g
- });$ Y5 a" {! a" e) l/ p, }
- : k) K# S( W3 h. w5 L6 g0 y4 J
- digitalWrite(2,0);3 I4 C" R# Z, R. m1 a& I7 i
- mainAction();+ s: `& t9 S6 ?
- if (digitalRead(0)){
/ T' s5 N4 Q* @: {7 u F - ESP.deepSleep(0);
* h8 p2 t' `% I2 V6 a8 U1 T - } else {
5 O2 h& N8 ~5 K+ P5 @5 ` - server.begin();
% x5 |& |% X! O: H% y1 y$ B - }( c$ l' {5 z' _" p
- }$ j I3 k$ ^/ ~+ ?0 u" X
- void loop() {2 `" v2 e2 C9 y5 s [
- server.handleClient();
$ j/ K, [" Y3 R* U% M2 d+ c D - delay(1);
, B8 W0 F: `- y+ U! E9 f - }
5 r* u) o3 j5 F" j$ e4 c& O - String doGet(String url){' @5 k& u3 U6 P6 \
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" {! `9 `. B; U" X6 f7 r - HTTPClient http;
9 l* S. X6 Z5 a) a - Serial.println("[HTTP] begin...");
# R" `$ n: \9 o6 _: ~1 O - if (url.startsWith("https")) {
; q6 ]- }1 w( _+ S4 W S k0 }0 G6 y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' `: `: s& W- {9 h6 { - } else {
- _2 y/ M+ A1 u! r - http.begin(url);
: T6 K1 r! R: w h0 W; z: { - }
) s0 Z V2 ~0 n, f - Serial.println("[HTTP] GET...");
' w3 z9 X) ^* O( q) |/ O6 C7 W9 r" o5 F - int httpCode = http.GET();' @7 g$ z3 A) G- E0 g
- if (httpCode > 0) {$ H% d2 R' g& C# i) i
- Serial.printf("[HTTP] code: %d\n", httpCode);0 y0 O9 k. w' w2 G* u
- if (httpCode == HTTP_CODE_OK) {
2 L+ m! H7 s: Y/ y" i) E - String payload = http.getString();: ^6 P# K9 ~( h& z! F* f
- Serial.println(payload);" {# K c( S: z" v
- Serial.print("\r\n");( W4 ?) {/ n' L. W' G# D( m, {& M5 ]; h
- return payload;9 r2 a* a; m) {; f$ w4 B9 T
- }
$ t- _1 b6 x8 x8 t - } else {
" a f( N% J( @- I; q - Serial.printf("[HTTP] GET... failed, error: %s\n",( q8 y6 D0 V5 Y/ a. a) m1 B) d
- http.errorToString(httpCode).c_str());
9 j) @! M5 g2 T, J' W4 z$ v - }
" ^0 ^. [4 `2 _: x! k5 q; b - http.end();
' ?* a+ _/ _2 e4 W6 Q/ o - return "";2 u3 c& p D9 Y
- }
0 {- @4 Y" p) L* w! c6 f - }
$ O9 c( f5 T! c - void mainAction() {
5 z- e( w& ] c! |. ]6 R5 I - // 发送请求
+ ]5 x1 Q" N: B - doGet("http://google.cn");5 U* k9 y E1 D6 U+ t) M8 ~! E
- }
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