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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)
; ^4 ]5 w* x$ r5 P; {) N5 f- #include <ESP8266HTTPClient.h>
" Z* e7 F; u R+ P% k Z, f. p4 \. \ - #include <ESP8266WiFi.h>" A1 u7 m2 P, ^: Z
- #include <ESP8266WiFiMulti.h>$ C: Y# b5 m1 p0 ~5 E5 n: `
- #include <ESP8266WebServer.h>
. K; U( B1 Y2 Q: p - #include <arduino.h>
0 l6 F6 R* K9 u' Z q* W' ]$ M) d: M - ESP8266WiFiMulti WiFiMulti;& s% p' R( r$ N8 m/ z& q' }
- ESP8266WebServer server(80);" H! ?0 I' E/ R2 ~0 y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, |2 W& t5 d; u' \, f2 m& M - ADC_MODE(ADC_VCC);! \8 v1 `0 k; O( ~9 O% ~8 r
- void setup() {" a' r& R% Y/ o7 }- f0 Z/ O9 z
- Serial.begin(115200);! J y! a8 B" v6 L% M9 h
- Serial.print("\r\n\n");; M+ l) V a2 C& r4 N
- pinMode(2,OUTPUT);4 y2 \- K9 i( }5 ~% g
- // WIFI
! R3 Q0 R. t K; ~ - WiFi.mode(WIFI_STA);
) @. N! @/ Q; N% ^ - WiFi.hostname("Sparkle");5 ^* K* e0 i& j6 j% y6 I0 _% J
- WiFiMulti.addAP("wifi ssid", "wifi password");9 g8 o4 n( W2 ?! H" s s5 o. V
- int tryNum = 15;
( N4 J# `. ?3 D, N - Serial.print("Connect WiFi");
# v9 N o' f, | - while (WiFiMulti.run() != WL_CONNECTED) {
1 b3 S- a% W1 C4 G5 h" m+ H - digitalWrite(2,0);1 U5 {" q0 a% T7 w5 ^+ o
- delay(200);7 |' u7 {; m, {( R- }
- digitalWrite(2,1);& Y' f0 g# z4 W# q: E' ]
- delay(300);( D$ e0 D5 \0 E; `& h
- Serial.print(".");3 x/ K, ?8 x' f6 ]) g* `
- tryNum--;5 q0 } |. N1 U' ~* L0 I- l
- if (tryNum == 0) {5 s; J/ Q) A! ]4 @# D% X* z
- // 1min
# E# I. r4 E$ b* s& [! Q& U - // ESP.deepSleep(60e6);2 L1 M7 z& m) f' S! v
- ESP.deepSleep(0);5 Z$ G$ @# c) [- k! I
- }8 }( ?) ?5 _6 I
- }
0 N" Q2 K# M' F( P d( |" Q$ Q$ J - Serial.print("\r\n");2 x% H- U: |+ t3 J3 `, K
- digitalWrite(2,1);
/ Y" i% T5 p$ a. B9 U4 {9 i - Serial.print("IP address : ");
4 _0 y$ |0 }# `3 t - Serial.println(WiFi.localIP());
: Y$ H7 O; V, k z- y - server.on("/", HTTP_GET, [](){0 J4 J3 ^1 D& i" O4 b/ |1 s
- server.sendHeader("Connection", "close");
g3 g1 `' l5 y! i - server.send(200, "text/html", serverIndex);
+ ~3 }: M( ]3 s" O2 |7 ? - });7 c1 q: A0 Z/ ~0 N5 r6 ]3 N9 u, f0 z. ~
- server.on("/update", HTTP_POST, [](){8 t' e7 D# b3 C" \7 K. D) w
- server.sendHeader("Connection", "close");: R) o& G5 Z% H' x& z3 r
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% n g" L; F, t- G4 x% g7 _ - ESP.restart();7 _' e. l& W/ T# z5 U/ D
- },[](){
) J5 k* a1 S* p; m A$ K - HTTPUpload& upload = server.upload();
3 E/ @) _6 J$ B( b+ \9 Q4 Q& p - if(upload.status == UPLOAD_FILE_START){5 s) A4 b7 I) c0 Q3 Z
- Serial.setDebugOutput(true);
& r3 g2 Z; f7 t$ j, _ - Serial.printf("Update: %s\n", upload.filename.c_str());3 C$ i8 S$ i4 V* ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; B& M- p3 r# x4 b - if(!Update.begin(maxSketchSpace)){" y# W0 y$ ^1 I5 |
- Update.printError(Serial);8 x1 r/ k# p) U& v' b6 k c) G! ~$ W
- }* h/ D0 Z) f+ E9 W' U* A' J
- } else if(upload.status == UPLOAD_FILE_WRITE){' @& F) O! Y8 R& F5 j; X9 k
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( Q/ M0 i+ r( Y. C9 P/ Z2 V
- Update.printError(Serial);
, q K2 a- t7 G' h! }* \1 c1 r - }
2 `) ]# L$ A! a# K$ m% N - } else if(upload.status == UPLOAD_FILE_END){
- v. }# m$ a: U - if(Update.end(true)){4 e+ Q7 d/ G( l% G( h' U
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# w$ h- h5 ?1 f$ y8 x/ I - } else {
& e, }" f! v" j: H - Update.printError(Serial);
* [- a1 L. Q9 {3 {% m- t - }# L3 o+ y; n4 ~! n; x% f
- Serial.setDebugOutput(false);0 E, z& ?1 V0 z0 {; O- C$ y
- }
' i: Y. v0 S; ^/ ~ - yield();
w1 q* i" w7 v, P: X( y0 ^ - });
, v/ {1 z! G& A' c6 X% q -
, A4 Z9 f3 i; U* | - digitalWrite(2,0);
( W9 @1 x. X6 X8 x" |& e - mainAction();1 j, g5 ~" @' ]. E) o# X
- if (digitalRead(0)){
% R2 u$ n3 d3 r- r( B6 I - ESP.deepSleep(0);4 f9 I$ W' `4 k' L3 W
- } else {
6 Y, A/ J( I/ ~3 [) S. T! e, r - server.begin();$ `3 U$ w: s- m5 `: N8 l
- }% W$ ]: U3 j( u% l/ y. Q4 A2 l9 R
- }& N. i" T r* h3 ^) w" X
- void loop() {* l. I+ W- x+ l* M P1 A- T, f
- server.handleClient();
& S& R; d# p# z# r0 S& `9 J, e6 ` - delay(1);
+ T: I( R! A) U/ u3 d - }
7 a7 b0 O) P2 \: m( ` - String doGet(String url){9 b5 [9 c& |9 o( `6 V, v: b0 `
- if ((WiFiMulti.run() == WL_CONNECTED)) {- K) e: c# }. q! e+ X
- HTTPClient http;$ D8 ]2 N& _, G( M1 a
- Serial.println("[HTTP] begin...");
* b6 {; }% k7 `8 j - if (url.startsWith("https")) {
/ J5 I9 o5 U* O1 _7 n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 ]) O F) ?1 | - } else {
( y6 F* f' z- b8 P6 ^+ ]! F - http.begin(url);2 ?- y. o+ ^9 `
- }) Y- Z( _, w2 ^! N/ X# Q
- Serial.println("[HTTP] GET...");
4 Z0 Q" x: o) i6 v - int httpCode = http.GET();0 k, ^9 U6 z! i# O2 g4 K6 W3 }
- if (httpCode > 0) {
2 d' X; _: z; m* C& g4 U7 D& [ - Serial.printf("[HTTP] code: %d\n", httpCode);
" {0 u: v# b( |1 c# O0 ?( ? - if (httpCode == HTTP_CODE_OK) {. E5 z0 L2 z% D. ~& M, [
- String payload = http.getString();
, Z# G7 O7 q7 I& e# d* l: Y - Serial.println(payload);
: f6 q1 N" X# J3 Y3 Y' @ - Serial.print("\r\n"); b! w" {* C+ I D
- return payload;
/ {7 k3 Q1 {' Q$ T) [ - }
, t/ ^: p, v& t- W8 P: | - } else {5 i8 y0 J2 g- L* k; P+ m# G: P: O( _
- Serial.printf("[HTTP] GET... failed, error: %s\n",; V8 B9 M q$ P$ k
- http.errorToString(httpCode).c_str());
7 j8 q; v3 E! C* `1 e6 @: } - } x# ]$ P2 Z* R2 y! N. I7 s
- http.end();3 j, @5 X4 Y6 s- R
- return "";: m. g4 W6 y7 x$ i7 k
- }8 U; r. D9 O; K* v% O! L" Q
- }
" M2 A0 S' C) i! ?6 r2 e - void mainAction() {& ?/ d( P) e' T0 N( s* S \2 n
- // 发送请求
( C! ^. J/ G0 g9 K h+ N$ e% P4 Q - doGet("http://google.cn");
6 v' S5 f, [9 @* ^ - }
2 I& @. E1 {$ O' m, d' h
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