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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)
/ w( z/ F* M5 s- p2 ?$ |5 M- #include <ESP8266HTTPClient.h>
" A* n0 Z2 T. s" J' } - #include <ESP8266WiFi.h>
" p B. P& O+ D0 v% f - #include <ESP8266WiFiMulti.h>
, f) R9 b+ U! u" P+ H - #include <ESP8266WebServer.h>
) S; ?- i' k/ K8 S& L - #include <arduino.h>
* d( d5 N! l* h* D! t - ESP8266WiFiMulti WiFiMulti;/ v v2 O, f9 s4 u+ F" p
- ESP8266WebServer server(80);
- O' c6 M/ {# M - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 t. U) |5 r7 Z$ r- ? - ADC_MODE(ADC_VCC);
/ p: a; M2 w3 W$ I0 z - void setup() {9 I- c* `" m% S& h4 L. P. o
- Serial.begin(115200);4 G# |7 X6 H0 ^2 P
- Serial.print("\r\n\n"); X) x7 v6 G7 a8 }
- pinMode(2,OUTPUT);$ O- S8 D* `. P/ }) [0 q7 V, W; T
- // WIFI
6 N7 v5 k& Y: [& n* s - WiFi.mode(WIFI_STA);
8 B5 H4 ]/ I# A% C/ v( S - WiFi.hostname("Sparkle");
' N7 J9 I* L a7 u: [0 A& ~/ g - WiFiMulti.addAP("wifi ssid", "wifi password");. a/ c: x# i0 A
- int tryNum = 15;5 g+ I5 ~4 \' ~( o3 T7 S+ `+ N
- Serial.print("Connect WiFi");2 R, }1 `% D! B9 C$ m2 n1 M4 q
- while (WiFiMulti.run() != WL_CONNECTED) {
% b8 [2 N1 @( L, ^: i' n0 f - digitalWrite(2,0);
8 ?& ^, E% B0 V6 w0 }2 s6 i1 K - delay(200);: l7 q% \& K4 Y. T4 x. _7 X. b
- digitalWrite(2,1);
% L) s0 w3 V, b+ F5 U9 o - delay(300);
6 w- [) `! m/ I' h' x - Serial.print(".");
% R9 D x2 ^( r: \ - tryNum--;! P9 A- y4 t: ?9 {
- if (tryNum == 0) {
- l" v' m7 ~" l2 B - // 1min
9 Q& z+ j" [4 q3 a% {6 {' O; a - // ESP.deepSleep(60e6);* h- `$ M) A7 I: J; N( S
- ESP.deepSleep(0);0 F5 [* r% O+ \+ {, p" P
- }
% i) k- |; D7 U - }3 g( l( K0 q" P8 J4 [
- Serial.print("\r\n");- d, v; {6 ^# i7 t
- digitalWrite(2,1);7 Z5 u& X+ }6 k# i. a0 a |
- Serial.print("IP address : ");- J' M/ G0 o) h# m
- Serial.println(WiFi.localIP());( a. h+ K* X% v O X" p' \
- server.on("/", HTTP_GET, [](){4 N" }2 k8 y, e( f: K: Y. \
- server.sendHeader("Connection", "close");/ D" C) P2 u: J7 A
- server.send(200, "text/html", serverIndex);6 |2 S) a6 J g# F/ m: u( w: h& @+ \
- });
/ y* B' B6 u$ l9 f" T4 i - server.on("/update", HTTP_POST, [](){
v# _6 v8 J2 P - server.sendHeader("Connection", "close");! F; x$ p1 m& R7 L3 A5 A }7 H0 ^
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 R% I0 H G* e9 Q- Y9 A2 b. r
- ESP.restart();
6 t) `% D9 o' J. q+ w& X( W3 G - },[](){
! K" V3 t5 }+ T& \; p, Q - HTTPUpload& upload = server.upload();
9 |( \" O+ r, h/ X& I. f5 ? - if(upload.status == UPLOAD_FILE_START){0 a6 f ?4 Z. J! A# f
- Serial.setDebugOutput(true);2 e+ u0 x1 X0 G7 I' {& M) u- I
- Serial.printf("Update: %s\n", upload.filename.c_str());' c$ X' }. x" [& R
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;2 ^0 D* y- f) s, l- y2 q9 c
- if(!Update.begin(maxSketchSpace)){1 n' V0 q9 I0 [+ t
- Update.printError(Serial);
5 @7 w' u! Z$ H# D' R2 p - }) V% o- E# R4 ?* b4 X2 I! `) L' `+ x
- } else if(upload.status == UPLOAD_FILE_WRITE){
- h& u, |3 h0 O- y! T# B8 }0 A6 v - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% m8 c+ [% G1 B/ B - Update.printError(Serial);7 ^" `9 V$ R" z/ z. S0 h% g
- }
% G) n0 w: T3 }1 z7 [% J - } else if(upload.status == UPLOAD_FILE_END){
& F: S5 O0 P" ? - if(Update.end(true)){( }; ^, k& o0 \6 b
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; n( ?5 y6 `: ^1 {" V+ q) s4 W% Z - } else {
' s1 I( @7 J' V m; a( S% {; w& V - Update.printError(Serial);. [, S7 s4 {* x' J( J8 B4 x2 X
- }9 |2 |/ y" K8 d9 x$ c; T
- Serial.setDebugOutput(false);1 p' `3 H) ^) q& q9 Z& u
- }
! p0 @( ]3 c6 b - yield();
# @8 a* B4 A, k - });
3 @7 |' B9 S$ N& s2 {" [9 d! k: B -
% \3 K; Y5 n& m - digitalWrite(2,0);
; k) Y/ b' e; B5 I& L* E - mainAction();
* C! t0 `8 |% W/ ?# H - if (digitalRead(0)){
) q8 ]2 @. @* U! k* o7 n - ESP.deepSleep(0);& W# Q% L5 d) j @* G; @$ @' x
- } else {/ c2 d% O3 \' d4 W ]& s
- server.begin();
. q0 T$ z6 @4 \9 ~" @' b8 y3 l! ] - }6 i0 z5 r4 X* R; Z7 o h! R
- }# [/ u6 w; j8 h( ?& i1 I
- void loop() {9 w' J$ D' i5 {( J8 G3 v
- server.handleClient();5 U( e4 e* J7 v
- delay(1);, |7 V5 c4 c% Y7 m" e# }- e ~' T
- }
' v" r: `* ]5 u. ^% d4 X - String doGet(String url){
& W9 k$ I. g) k! I F - if ((WiFiMulti.run() == WL_CONNECTED)) {8 Y; s, g3 s% [) x, P, u
- HTTPClient http;
7 H6 V- }! l5 t4 O! g6 H: N' u - Serial.println("[HTTP] begin...");
* b! Q# I& j& E) s7 c8 e# [ - if (url.startsWith("https")) {6 i. F* ?/ J- Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% H. X; U( k7 p1 ?& ^ - } else {
" C$ x$ O& i* A) k5 f& b - http.begin(url);5 j- k! f! Y9 v |7 Q# z
- }. q( S+ u: w. n }+ @0 C/ z2 l
- Serial.println("[HTTP] GET...");1 g% N1 ]; Y: m7 N1 M; @
- int httpCode = http.GET();' E( z$ T# p7 ?! F, g, u
- if (httpCode > 0) {# _0 R/ }8 [! k/ m0 ^
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 r8 K1 t& N5 j ]+ m - if (httpCode == HTTP_CODE_OK) {
9 S& B0 i3 P: Q+ E; _3 g$ ^, A9 i - String payload = http.getString();
" v$ s* h7 v7 E! g2 k - Serial.println(payload);
: v. E( B# a; b& J - Serial.print("\r\n");+ T7 j& d2 Q6 Z1 M8 w
- return payload;
, C3 R& M( W( a& k& v - }
9 B% n- l i s' }" W1 Q - } else {
6 F2 B+ X& ~/ D; ?0 q6 m - Serial.printf("[HTTP] GET... failed, error: %s\n",& ?" B; l3 u5 O: m7 R* E+ Y9 J$ A
- http.errorToString(httpCode).c_str());
* h6 j5 j( C6 r L* h, _- z" X - }) D7 E& t8 a' h3 l1 g
- http.end();
% d( A. K% l, d$ j1 t - return "";
( I+ N6 w. q9 [5 G/ X5 {1 e - }
5 W" V9 w0 Y" B% }6 l* }5 L - }* ` z. R6 [' Y; ?" G( ~4 n
- void mainAction() {
4 W9 V0 R1 _( d, p - // 发送请求
4 a% w3 `& e, U6 Q6 q5 Z - doGet("http://google.cn");: o( B& w8 Q4 Q3 K- ^
- } z: m- H% s- p% x+ m' b5 s! R" J
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