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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)3 u( C; q. a# ~# C7 R1 v4 N" t% b
- #include <ESP8266HTTPClient.h>% y6 |7 {9 ~5 i2 }
- #include <ESP8266WiFi.h>
. s( A* t$ f/ ^3 n7 K - #include <ESP8266WiFiMulti.h>, ?7 |: N( y: r m: y- s
- #include <ESP8266WebServer.h>. r2 ?! K/ S4 k$ k& z: C8 p
- #include <arduino.h>
# V" F8 h) H% A! n$ H - ESP8266WiFiMulti WiFiMulti;
. l" `. u' v X' ?1 Y9 K& ` - ESP8266WebServer server(80);
- v, }0 w- F- R: `" d" z! V" q2 M - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 T& Y0 z) U" z - ADC_MODE(ADC_VCC);
% k! \7 D2 ?- u0 N - void setup() {
5 W- \1 s, \- ~) Y8 U! A - Serial.begin(115200);
- l$ Y6 w, [5 e+ R( E Z* Q - Serial.print("\r\n\n");2 J; s$ |! K: d4 Y3 D, d
- pinMode(2,OUTPUT);5 L- ~& P6 n/ A
- // WIFI
8 q' B2 {# T; Z - WiFi.mode(WIFI_STA);
, I/ A/ ^* J! N - WiFi.hostname("Sparkle");. ], Y, ?5 e1 G# K1 {
- WiFiMulti.addAP("wifi ssid", "wifi password");
( s# R6 [5 y' o/ U0 z$ H - int tryNum = 15;
+ p2 I6 Z7 ]1 P' } S7 J - Serial.print("Connect WiFi");, F% L& r' }* E# g( K8 y8 B
- while (WiFiMulti.run() != WL_CONNECTED) {
4 ` c: Q$ Y4 _: e; D+ f/ R! r+ { - digitalWrite(2,0); B& O* Q+ h9 H( R/ K: a/ i8 Z
- delay(200);. J) N6 K! X/ i; p# W X `' G9 ]
- digitalWrite(2,1);3 [" [5 e( G8 z- g: D4 I
- delay(300);! D5 `+ j8 u* H1 f3 ^5 e. E5 p2 e
- Serial.print(".");
8 {: x/ f& G, c s - tryNum--;
# r- m" k' E7 m/ I+ c0 Q - if (tryNum == 0) {: o6 g- A. s- t0 D T9 m7 e& ]3 z
- // 1min
. B! T" C. o( E9 i - // ESP.deepSleep(60e6);8 N+ Z8 R% d2 ^! T4 Q; j/ F
- ESP.deepSleep(0);
8 s+ x; J) h/ q+ B - }8 K8 B: T+ P* q5 D9 |
- }6 T" l: C+ V4 n
- Serial.print("\r\n");
- m" U1 F8 f& W7 {4 [ - digitalWrite(2,1);
+ j- P8 g2 e+ j( m+ i* j - Serial.print("IP address : ");" w1 ?/ W; f: \# n
- Serial.println(WiFi.localIP());% L3 h1 _4 _4 W: R& [9 X0 c& { a
- server.on("/", HTTP_GET, [](){( @1 }* f. C7 \0 C+ y
- server.sendHeader("Connection", "close");
1 |. u" F, Z% c - server.send(200, "text/html", serverIndex);
, Q5 u8 K4 Q& S5 A& a - });
1 z$ i0 `. G, Y - server.on("/update", HTTP_POST, [](){% } N3 Y) l! n4 q/ {, W' ?) h
- server.sendHeader("Connection", "close");
! N" E" w# M; l; b$ n - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% ], X. s+ x* {( U/ k5 \6 K | - ESP.restart();$ s: h& ]8 t7 D. [. {
- },[](){
7 l2 s O* Z# c; d - HTTPUpload& upload = server.upload();
" c3 V' V% r% |1 g6 m - if(upload.status == UPLOAD_FILE_START){/ Y3 e$ X& O3 p- Y, y" M
- Serial.setDebugOutput(true);2 [# X, U# }' R; [3 @
- Serial.printf("Update: %s\n", upload.filename.c_str()); O& ^/ M1 R" y- A8 a: |4 l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, Q5 @: d; Q4 M2 B$ @
- if(!Update.begin(maxSketchSpace)){& {2 l ]% _% I
- Update.printError(Serial);
$ b& J" p/ `; f - }
5 s+ J) V$ d3 b% A - } else if(upload.status == UPLOAD_FILE_WRITE){- i! N4 |6 t3 o
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; t: b% p! M9 O4 g7 ~7 E - Update.printError(Serial);; ?; @+ C. h* V8 z6 Z
- }
: T ~- r A( d3 v+ ^ - } else if(upload.status == UPLOAD_FILE_END){/ P+ }' v& g+ n/ p" |
- if(Update.end(true)){+ e7 Q3 D; c( E$ T
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* N* M2 A5 w' B& ~; K" }/ ~6 I - } else {. J# ~+ a. u+ d8 u. i! W1 f* a
- Update.printError(Serial);4 ^4 Q! X3 r$ j( [
- }0 i, M- [3 K- d- d1 t1 C5 R9 ~9 T' @
- Serial.setDebugOutput(false);$ |0 c: a: L% |9 R C* ^( }' H. n+ q
- }
: K3 a$ c: O. |9 J f4 l - yield();$ Y7 p) l/ ^) {+ z
- });4 v, i4 g1 b; ?! e1 a, }: H
-
- u* R+ h9 d2 j3 U' `' u) F - digitalWrite(2,0);8 v) G. K- h$ n% P8 a3 E! G1 V
- mainAction();% ?# X! h0 F! l2 @( l
- if (digitalRead(0)){( e& d3 ^+ y" F% w" ?' h
- ESP.deepSleep(0);
q# i' T. D. D- C" b% j6 S4 P - } else {/ n/ O7 C7 X' A" \( q
- server.begin();
; _! I3 t- A; s# z4 X Y - }1 Y! ]' a. r) Y) P k3 F
- }& Y. m% ]* c5 ^3 \* v
- void loop() {
6 [- J0 g6 @0 }; J3 Y( g - server.handleClient();
4 e& _& c" \' n1 c; `" q - delay(1);
. L0 h, e* F/ ~! n - }+ q" J2 |3 [4 s
- String doGet(String url){; k' |) y) W/ Z
- if ((WiFiMulti.run() == WL_CONNECTED)) {
+ Y4 o6 d8 L8 D - HTTPClient http;
. c3 U$ w& l+ {. X2 a - Serial.println("[HTTP] begin...");
5 Z( Q- S5 H3 I - if (url.startsWith("https")) {; d7 U' ?0 v K8 l
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: J9 @2 ?+ B3 `
- } else {# P1 ~1 }3 Y( K5 d: @, a
- http.begin(url);5 O0 e2 u0 s! G0 o2 O# F
- }' y' `4 {; W8 |% Z8 W+ O
- Serial.println("[HTTP] GET...");
3 P8 }3 I& ?! M& _1 I) b* Z5 _ - int httpCode = http.GET();
2 W, V7 H. k, P. P - if (httpCode > 0) {. u s3 E% D2 T4 n
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 D# a; K! _ n) i! `0 k6 N - if (httpCode == HTTP_CODE_OK) {
% l+ H M s- V1 J8 f - String payload = http.getString();, L3 A! `" v4 Q! U% m
- Serial.println(payload);4 i6 O4 e5 a7 e& ?/ e
- Serial.print("\r\n");/ w* P. Z4 z; s! b' x# M9 v
- return payload;
! |' @' N9 c0 ^4 J# b7 u - }8 h$ c* w3 V! w' `9 ?9 x
- } else {# H; K- e4 }8 m& K
- Serial.printf("[HTTP] GET... failed, error: %s\n",4 f. l4 Y- T! J4 j5 F$ d- I: w( Y- Q
- http.errorToString(httpCode).c_str());
) R, S0 d) d+ u5 N* _4 E: y8 V% ? - }* F/ |' ~% n: {+ r
- http.end();
5 e: Q( x, U. H* d5 Q* c5 h' Y' c9 D/ P$ K - return "";
# M7 [8 c; `/ Z j: }6 V - }; s' C4 l0 [( q# H' z$ p j0 D
- }, ]' G& ^' V+ C; {1 j' J' Y
- void mainAction() {# T8 j; w) g0 q% v
- // 发送请求7 c/ j3 Y4 I* {# \% T9 D, d5 x( e
- doGet("http://google.cn");4 G/ |8 W9 |7 s2 o/ y
- }# E- @( b& C' d! _/ Q7 `8 K' ~
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