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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 p8 D# A6 P4 D, |! x- #include <ESP8266HTTPClient.h>
! m0 t1 Y8 T/ U - #include <ESP8266WiFi.h>
3 ?* K- h. R4 Y - #include <ESP8266WiFiMulti.h>' V# n/ T; |9 a) B
- #include <ESP8266WebServer.h>" G3 X0 e# N8 d3 ^. c9 n6 A3 j
- #include <arduino.h>2 b6 h! r, X* X; A
- ESP8266WiFiMulti WiFiMulti;
2 p- Q: K2 A1 j1 r U. i - ESP8266WebServer server(80);$ K! J2 I. @( {* k
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ I+ u6 [4 V/ M6 c. S$ C% ?+ f - ADC_MODE(ADC_VCC);
7 V( S3 U# D7 i# d, L1 L1 M - void setup() {( A2 ~$ M+ n+ S! g6 R% O; A9 m
- Serial.begin(115200);
4 _5 N2 h+ m& `2 N! F% Z, P - Serial.print("\r\n\n");- W5 T4 E5 [& K% u- `, f7 N
- pinMode(2,OUTPUT);
7 s2 |$ B4 P; N' i+ V. L) B: Z - // WIFI8 [& e! R( b7 d: c4 b2 x$ m
- WiFi.mode(WIFI_STA);% @4 [& _' y$ ?. ?
- WiFi.hostname("Sparkle");
2 W1 @" r6 Y) [4 u. @/ U2 j' j - WiFiMulti.addAP("wifi ssid", "wifi password");
# X! A. k4 q- n* S! n6 A- T% W, b - int tryNum = 15;8 Z3 x; O! Y. B5 X
- Serial.print("Connect WiFi");
7 c0 i- r0 V h" A/ G4 V - while (WiFiMulti.run() != WL_CONNECTED) {
( k& u `- d2 j3 q6 f - digitalWrite(2,0);8 K% V `, O8 z4 r! I& X
- delay(200);
" X% b5 z3 N# i+ a3 D - digitalWrite(2,1);
. ^& ]' y" h) b. y2 R( }0 @$ C - delay(300);$ X- V8 Z1 D9 _4 Y
- Serial.print(".");
& O; t- H- N! Q: g8 J - tryNum--;4 i* d& ^: O) R$ ?; d5 b
- if (tryNum == 0) {% ]$ k/ ]5 `& _+ e6 i
- // 1min8 I, R1 E- e2 J( ^1 p7 W5 J5 D
- // ESP.deepSleep(60e6);4 X7 x) ~3 k5 u/ R
- ESP.deepSleep(0);
# k: u6 P: }0 y* U; ? - }, _5 w8 Y6 H# U/ a6 j4 Q8 R( _
- }
l: a: I% L5 `3 S7 O* H. T7 v' v$ y - Serial.print("\r\n");
8 C% c/ A' c, I- M5 I4 Z - digitalWrite(2,1);
/ o3 b0 l H8 A- q. ^ - Serial.print("IP address : ");* K% k$ W! O' i: {) T
- Serial.println(WiFi.localIP());) i9 ~% M5 [) O& ^
- server.on("/", HTTP_GET, [](){+ K% ]* f7 T: {1 T+ B9 n
- server.sendHeader("Connection", "close");
$ h% I+ d2 ]8 u - server.send(200, "text/html", serverIndex);
% W; t8 f9 ]! `9 ?) s - });) i& |" s5 i/ u! {: ]+ ~9 s% n
- server.on("/update", HTTP_POST, [](){$ c; W: P' o, h, y* D. o/ c
- server.sendHeader("Connection", "close");/ k/ A- \6 K* x9 _2 B8 ?; z. P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 X( a# ?! h% j( l5 S) n6 M - ESP.restart();
7 Y1 B" y' G" `! O& g6 g - },[](){
+ ^% s% ?4 n% k& K' I8 i- O - HTTPUpload& upload = server.upload();
4 V6 F6 j1 `' H# }3 ? - if(upload.status == UPLOAD_FILE_START){
; X0 h# y5 r: l( n# L - Serial.setDebugOutput(true);2 [, G8 t% w" h* c) S( m) q }( S
- Serial.printf("Update: %s\n", upload.filename.c_str());$ a, P* r/ Z$ v/ u( S' ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* v, ]5 Z9 F9 T' ]" n; n8 I. T8 q - if(!Update.begin(maxSketchSpace)){: i; v6 Y$ I6 I% @% r2 q) A# `- [- v
- Update.printError(Serial);
( u1 c! U& O8 N" B$ e5 t/ c - }6 b: r: T4 I0 B. |& `/ H, X V; m
- } else if(upload.status == UPLOAD_FILE_WRITE){0 W$ W0 G% l2 i5 V) A0 `- K8 R
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 K1 ?; k- }" l$ @, C4 D - Update.printError(Serial);
2 F; B2 L1 S% W) a; f - }
7 h% b$ H" [3 r: g; T5 i: e; { - } else if(upload.status == UPLOAD_FILE_END){" Y7 r% Z' D. o7 k8 p, T
- if(Update.end(true)){
0 g, r* `* U2 F- y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! \- g) v3 E; S, L4 e. r
- } else {
! W# f/ t" W# [6 X - Update.printError(Serial);+ l, d) a) E2 a0 H+ y: l0 `
- }
. u0 C2 E0 y: b0 U; c% w$ L - Serial.setDebugOutput(false);
7 [% A- S: B. v- M8 @2 d - }; L) h" k; ?0 W6 I+ H
- yield();
5 `) u' e% I) U; ?* y8 } - });
6 K1 a, A2 Q% i8 } P - ( V7 O/ H' L- l5 ?$ G! c9 ~
- digitalWrite(2,0);
; e& i) y- O$ d& g: M2 p+ t5 ` - mainAction();
6 A3 l( g7 U; D - if (digitalRead(0)){9 L: k' V/ [ p6 w1 x
- ESP.deepSleep(0);, S9 C" k& ^* u1 K( Z3 b a
- } else {
8 o* f. ^+ x2 n6 H; p5 L& c - server.begin();
" N! v9 x, o' m6 A4 G - }
/ j# \- B: x* S: ^/ f7 o' F - }
7 a1 l/ p4 _9 V5 V `" j! z - void loop() {
. b) e5 N! g# s. J - server.handleClient();
3 F1 Z R+ S5 o9 t8 \" j, k - delay(1);3 C9 d& m$ j f- |" {6 B
- }* B. i. [7 a. } P; C* {
- String doGet(String url){' n; [* m" |8 w! V: f2 Y$ \8 Q! X
- if ((WiFiMulti.run() == WL_CONNECTED)) {
( m; z) k- v, t2 e) s; y+ v i - HTTPClient http;
8 c) S$ T6 H* X* p4 @ W - Serial.println("[HTTP] begin...");
) o" B0 X1 i; ]. A% S - if (url.startsWith("https")) {3 O+ b. ?0 t# b/ d& S6 ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 B+ ]2 d6 E# E+ ~( F6 { - } else {
! L, q& k; h: f2 c6 w - http.begin(url);( `) m# H/ @5 M* H
- }
4 ?* A- B. n$ O2 Q8 n" w - Serial.println("[HTTP] GET...");
) t1 S R" }% J# n( C* n - int httpCode = http.GET();
: A1 l* d3 f) U F - if (httpCode > 0) {" F9 B9 r$ A; ^% J" r% R
- Serial.printf("[HTTP] code: %d\n", httpCode);
! C% h! p7 {7 x4 i) O2 F - if (httpCode == HTTP_CODE_OK) {: A. ]. Y) \# O
- String payload = http.getString();
( T3 p1 L+ Y$ G' U8 K - Serial.println(payload);# n Z+ \& h. ?/ n$ }7 I& [
- Serial.print("\r\n");/ y' {) i6 t8 s5 ]( O
- return payload;
) L4 u: T) Y) m' F3 n1 b - }% y# x7 I1 q5 l; J o
- } else {. w; b8 _' H& {
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' `. `; X. ], J& o9 w* w0 Q - http.errorToString(httpCode).c_str());3 e4 |7 X) s- y% J0 L& t; x" h8 k
- } \9 B& |9 s4 d$ @, v- ?
- http.end();
c% @: R" E! `. M - return "";' |; c' D: j9 w7 j
- }
" J1 g* X$ q. { - }
8 R% b$ Z4 M& z1 i0 D) I& [# Q - void mainAction() {
& P* P( v4 K! M: ^/ Y$ q - // 发送请求3 ~* }& @) _# _
- doGet("http://google.cn");& O' o+ O$ p, W8 j6 x$ [
- }1 K' J% N5 u7 n$ Q/ r( r* ?; G
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