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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)) X( D# |: B& [- u. |0 _
- #include <ESP8266HTTPClient.h>7 v1 C v% I( ~/ W2 C0 I
- #include <ESP8266WiFi.h>
/ O! v& I# ^# s( t - #include <ESP8266WiFiMulti.h>; |+ C7 l- P$ r
- #include <ESP8266WebServer.h>) i' N& K# S' z5 {8 Z& J& N5 [. [
- #include <arduino.h>
& Y+ W) V1 U+ T" G4 K4 W5 t - ESP8266WiFiMulti WiFiMulti;8 W: S. |6 x" g, C- C% w9 s# S
- ESP8266WebServer server(80);
3 Y; D9 ?2 H& I0 c4 k$ Z - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; w+ u F% B+ v4 @) ?2 A9 T
- ADC_MODE(ADC_VCC);( B. T1 E: J7 Q& H! C5 s* g- J. e+ Y
- void setup() {
) e0 W3 C3 u. C5 g5 f - Serial.begin(115200);7 Q( a# d% a: \% K4 ?
- Serial.print("\r\n\n");
0 I) f; |8 d. ^! Z0 ]% u* H - pinMode(2,OUTPUT);
, u9 L' M5 L6 c3 b+ f- h2 D' g - // WIFI
; d# F8 I: a' q- C, f& K' a; t - WiFi.mode(WIFI_STA);2 H0 R, L8 |3 R+ N% E, I
- WiFi.hostname("Sparkle");0 b7 q! H) |8 I/ G; L
- WiFiMulti.addAP("wifi ssid", "wifi password");
@9 k' P* _) d3 Y ~/ r; ] - int tryNum = 15;2 t4 ^ o3 l3 i7 D/ r1 l+ h
- Serial.print("Connect WiFi");" K2 }. F) I% O) t2 x- u
- while (WiFiMulti.run() != WL_CONNECTED) {5 V! Y' A" {/ I7 I4 G) k
- digitalWrite(2,0);
% z. Q/ r$ z& l* D1 H1 M8 Y - delay(200);
7 f* k7 B6 r: s- m, B4 z7 p - digitalWrite(2,1);
5 n2 N1 N# m H0 b" u+ `$ x6 V/ S - delay(300);( e; _% F/ d2 X1 j+ Q% \; _, F9 s2 d
- Serial.print(".");" ^+ E8 }, H# {# [
- tryNum--;
. G# H& e6 U; s1 e( T" Q0 o - if (tryNum == 0) {' T( ]5 N* j/ p' ^- D6 O
- // 1min
8 D2 ^. D( V4 _* w4 {7 [( i/ v - // ESP.deepSleep(60e6);. X0 Y) }2 ?% P- b
- ESP.deepSleep(0);
- E3 G! I/ Y$ b2 I0 G6 @ - }
) I& V/ d/ L. A, c' ?1 ]; v - }# z# j& r' i) f b6 I5 ^# |9 X
- Serial.print("\r\n");
' j$ ?. _9 U" f; d( K3 I4 v - digitalWrite(2,1);
4 D5 J$ n" `- O: |1 [' H; V - Serial.print("IP address : ");2 w3 D0 Z# U7 h, M9 I3 {1 [' E9 Q$ f
- Serial.println(WiFi.localIP());. S; R0 r" O* E
- server.on("/", HTTP_GET, [](){
5 c- \: b3 q: Y/ X( L - server.sendHeader("Connection", "close");
6 A+ b* R1 e6 a$ B# h2 a - server.send(200, "text/html", serverIndex);% D0 c& R2 W! K
- });' k# `& c# ~" J, M) B& u* U
- server.on("/update", HTTP_POST, [](){* ?$ E% x" _* O, g
- server.sendHeader("Connection", "close");
* c) D& }4 X) P1 @/ X, \ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# q9 g; u$ r" j! _5 E6 B: {7 F6 Z
- ESP.restart();8 a, q8 H. ~+ G! D2 O3 @
- },[](){4 ]2 K l( K8 D7 i& |
- HTTPUpload& upload = server.upload();
2 _% T: K& P/ u$ d" N8 o5 ?+ G - if(upload.status == UPLOAD_FILE_START){# u' t3 ~0 E0 k3 H; J
- Serial.setDebugOutput(true);
. U2 y% p! U+ k/ K+ X9 I7 X5 x - Serial.printf("Update: %s\n", upload.filename.c_str());
$ ~3 \( E7 ?! {2 M7 a3 O& O - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ r" ^8 F% p+ o% y7 u - if(!Update.begin(maxSketchSpace)){
$ f0 @% r% }, s, q, k' T - Update.printError(Serial);
' r5 o* _! J9 D, k6 J# T# k( \ - }
' M2 t! l# Q( _' P# b! G& a - } else if(upload.status == UPLOAD_FILE_WRITE){
5 g/ j0 e; ~* ?# w% Q# N - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; i9 f, y! ?7 {+ U- a3 x3 L5 b5 e
- Update.printError(Serial);# K$ {+ v8 G4 _1 b* D: e& O: H4 a
- }% I7 }) v5 U' }- p+ x
- } else if(upload.status == UPLOAD_FILE_END){* s) U6 Z8 E+ U% Q# D0 l x
- if(Update.end(true)){# z4 _0 T: Z1 O/ x# R& v
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) d4 @- _6 A5 i
- } else {$ ~2 o& E5 v: j
- Update.printError(Serial);% P9 t- E w J1 a% v% n [
- }
( s2 b" F) D, a4 w. Z; b' } - Serial.setDebugOutput(false);
( _$ C9 b1 K2 T0 z: v - }
9 Z+ b9 V$ ?: `0 f/ b - yield();5 O4 g; \) G3 ^ L& E, g3 J
- });
. Q# A6 c8 k- T" Z! b' D1 w! [, o0 _ - - p7 Z6 ]) d* f J7 B2 w* e
- digitalWrite(2,0);: [' P- Z6 H6 M7 d5 o( {; w
- mainAction();5 N% |4 d& `7 Q9 e- v _
- if (digitalRead(0)){8 q3 n6 ?; l) x/ Y3 f5 @, b0 g, z
- ESP.deepSleep(0);8 H, k! ~# f/ [1 b. c
- } else {( O2 i- Q W4 q9 ]$ \) S
- server.begin();
$ k3 N! b! |. }0 }4 N - }
1 |$ O2 D) O) U% x, u1 d0 S - }
$ a3 H" \, f6 [ - void loop() {- p. R5 Y$ c( E6 i
- server.handleClient();
$ x! m( E0 W1 z& j* J - delay(1);3 C1 n+ Q) a: ]* O$ Z m
- }
& P5 v1 T ?. K" o6 {- k5 M - String doGet(String url){
1 @1 }0 c. n3 i; m2 i6 l - if ((WiFiMulti.run() == WL_CONNECTED)) {
7 V: P/ B4 W2 A. G4 Y! X - HTTPClient http;
6 D1 `/ V' D: B, i0 A2 Q - Serial.println("[HTTP] begin...");
7 T9 h" g8 w3 C) {, j3 a- R; j$ y) ^ - if (url.startsWith("https")) {6 f# t9 U$ ?2 ^5 d) q1 ~' |
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# T- i3 J( H7 t% d7 w& L# f - } else {
9 |: Q9 _$ J. v! O- Z7 L( m - http.begin(url);! E$ K% k; D5 x/ R3 j* E9 O, n
- }
2 z% z, u' h- s7 J3 B2 w4 h - Serial.println("[HTTP] GET...");
; k! c4 H; e9 A% R- T9 _8 ?% j4 t. o - int httpCode = http.GET();5 e- S: f+ j. l" K8 r4 }
- if (httpCode > 0) {, o/ Z. W+ f% N- F9 h4 v
- Serial.printf("[HTTP] code: %d\n", httpCode);. S4 K& q8 D9 q6 R/ t2 e9 z9 Z
- if (httpCode == HTTP_CODE_OK) {3 I( O+ Q+ w, ?/ T8 s4 Z# x
- String payload = http.getString();# H3 r/ B/ x# P
- Serial.println(payload);
7 s- b( W& N4 l( N# k" }2 ^0 f - Serial.print("\r\n");
2 A6 j0 Z; u+ b7 k6 m - return payload;& O( P0 @( D; [9 ^
- }" e; _6 a5 O: [, h# o# m& H
- } else {
: m+ l: Q9 ]4 L! \. e - Serial.printf("[HTTP] GET... failed, error: %s\n",
: k. }+ I9 T+ n( R1 d - http.errorToString(httpCode).c_str()); V& s, t4 S, w: H: {" M6 W
- }# N/ w+ Z# x% U- u* e5 F
- http.end();
- L ]5 y4 N9 i - return "";
& ], d* ^+ o! k - }: ^, \9 p1 m# g
- }
/ H7 N/ w' A2 S6 X - void mainAction() {" R$ B5 [8 R# i. M1 R" F: m
- // 发送请求
; d$ l+ M4 b& f' Y, N' L2 g+ M - doGet("http://google.cn");& y3 n$ D" d4 H! r% S
- }2 D* I; G' ]; C. |. k
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