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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)
0 _. U, E r0 @, J- #include <ESP8266HTTPClient.h>
5 ]" K0 v2 `: j - #include <ESP8266WiFi.h>! S5 f( {; B4 f- Q$ K
- #include <ESP8266WiFiMulti.h>7 n( b* Q1 Z/ c/ _# l
- #include <ESP8266WebServer.h>
7 k' i" `, t9 K0 V+ _3 | - #include <arduino.h>5 v' ~- L) s& }2 T# e9 o' v g
- ESP8266WiFiMulti WiFiMulti;
6 m; x% O2 j+ u) H% {' U7 A+ Y& K - ESP8266WebServer server(80);
$ C0 @! ^. v. D& I - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) h( J7 P* ]6 [$ g2 E2 m6 w3 u9 c
- ADC_MODE(ADC_VCC);/ J* t) ^$ s1 p. i& _9 |. g' a
- void setup() {
# ~) L& i" h& s! I4 u - Serial.begin(115200);
" z6 z" h7 w3 x - Serial.print("\r\n\n");$ u6 ` O8 Q- D
- pinMode(2,OUTPUT);+ ~+ L# M$ j, `+ Z$ G, I
- // WIFI
8 ^9 Y5 \! s0 J5 a - WiFi.mode(WIFI_STA);+ {* x1 O& y% s7 ]* I
- WiFi.hostname("Sparkle");2 g: \" o1 w$ z/ ~! }
- WiFiMulti.addAP("wifi ssid", "wifi password");
& q. T' z7 |; W! G: U; `; J - int tryNum = 15;
, ^7 {- b% |0 u( ^# m) O - Serial.print("Connect WiFi");2 v) e5 Y, H* _( ~5 \3 L& e. c3 |
- while (WiFiMulti.run() != WL_CONNECTED) {
3 [1 ~( v( W2 ?+ A8 m2 H, { - digitalWrite(2,0);7 C# E) W# Q( M& a6 B
- delay(200);
3 F+ E" I3 Z( [1 t6 @- p& N: b5 T1 d - digitalWrite(2,1);
( k% o J0 U, W" |) m5 i5 o3 T6 ?3 z5 ] - delay(300);" c' D6 U. I( a2 e5 s# M# l
- Serial.print(".");6 n* b% q+ l5 j
- tryNum--;( p) u. ~) S' U
- if (tryNum == 0) {
8 h( g! H) x$ U( Z6 _) J1 G; [ - // 1min/ R$ v+ y% x( ]& J$ w" e( \
- // ESP.deepSleep(60e6);
1 b+ }, }! Y+ h - ESP.deepSleep(0);5 U9 Z3 V: I* L1 ]$ {( Q( Y
- }
1 p3 m+ j) y* i* N5 s6 f: E - }: Y: V) r* F4 F* C, l0 F# @
- Serial.print("\r\n");
0 j! Q4 X& @6 N7 H6 d$ b, Z - digitalWrite(2,1);
9 {/ }8 x% S" D( W- | - Serial.print("IP address : ");
) v- m9 R- _7 D! D$ O# y - Serial.println(WiFi.localIP());: R' i! a% d# L: u2 X
- server.on("/", HTTP_GET, [](){
$ j+ N2 m: O, `3 ^" @4 G - server.sendHeader("Connection", "close");2 X6 L7 w0 L, F2 O& t
- server.send(200, "text/html", serverIndex);8 R. s$ X v( u
- });
% l* N9 A# y& s0 o1 U1 j( [ - server.on("/update", HTTP_POST, [](){
; T, N3 @- J9 Z8 r% D& t5 i - server.sendHeader("Connection", "close");0 {4 Y2 l) X$ p" y. q. i' B6 c: Q& K
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ S0 ~4 x" r1 ?4 F! a4 x4 @
- ESP.restart();9 d& o- W, ]5 ]2 l. g
- },[](){4 ~. W$ e; C) D) _ U& a( T( D. w
- HTTPUpload& upload = server.upload();2 }1 T% z4 E \
- if(upload.status == UPLOAD_FILE_START){, d2 m0 ?- P( D, t& {( _1 d' `7 ?
- Serial.setDebugOutput(true);) t* a: F% w7 A9 d
- Serial.printf("Update: %s\n", upload.filename.c_str());' d" _8 \; Z$ W; {& e' B* o- |
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 r3 c! B. m" u8 [* s6 }& W
- if(!Update.begin(maxSketchSpace)){( W0 [5 Q' `) |6 r% ~ `+ O0 {
- Update.printError(Serial);
! d% n; T1 s% u8 N% v8 o - }
2 W8 j3 [# c+ Z: c N6 f - } else if(upload.status == UPLOAD_FILE_WRITE){
1 z' H( l# U0 s# k' s5 ` - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ @5 d# j, z' o B* d$ X @ - Update.printError(Serial);* I# @3 b: Z2 ?) `) L# s( A" P
- }1 x: c+ H* I9 t) [/ M$ Y0 Z4 ^
- } else if(upload.status == UPLOAD_FILE_END){0 m3 M1 k# F, E# S4 D' p$ ]9 Z
- if(Update.end(true)){' E* B3 }8 G- b2 H' s
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, a k( V B/ Y) G2 N! p
- } else {# T& [& u5 Y9 M" {4 k
- Update.printError(Serial);
, ^" b7 c! C8 w/ h0 x8 M- A# W - }9 n' p# R2 D7 ^* Y+ t8 F
- Serial.setDebugOutput(false);% O. G1 U Q, Y! D9 H5 T
- }
. E; A' Z7 i" Y8 \4 _ - yield();0 }/ X3 M, V0 C' s
- });
5 y7 n3 I+ G1 M) v! j: W - 7 Q: p7 K3 U3 s; e
- digitalWrite(2,0);
1 h. Y3 F% L( t6 ~; F5 o - mainAction();; a1 ^6 F' F/ E: j6 v! D3 u
- if (digitalRead(0)){
+ L+ c1 T. l8 k - ESP.deepSleep(0);
# |" E& }# @) R8 r - } else {+ J1 i0 W6 J; {, o7 ~
- server.begin();7 O a6 C3 O5 }" i+ r# H# v
- }5 y D$ J5 y- O/ N7 Q9 i
- }! c$ A$ q( o2 o! `; t; L% V$ \7 e. J4 W* ]
- void loop() {; q$ s$ X. c# Y/ {
- server.handleClient();: S& x8 ^8 R' H f
- delay(1);- i) I1 Z- F3 w' n: f* `& e; w
- }* O% B1 C# w! K6 o" M
- String doGet(String url){+ r/ F( k9 x8 [% _/ s3 c
- if ((WiFiMulti.run() == WL_CONNECTED)) {1 C/ ~3 A. y" p. n& h
- HTTPClient http;+ G2 v6 `7 t2 j0 S5 k
- Serial.println("[HTTP] begin...");7 p( F2 }( H- Q9 |5 _8 B/ T4 H
- if (url.startsWith("https")) {& _: t1 L7 d1 }* v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& o7 ]9 Q5 r* {0 L - } else {
0 H& y* l5 q" V" A5 R0 h. X7 { - http.begin(url);
4 w" {& `' `, a j& e; p6 t - }
) z! P4 f3 f0 g - Serial.println("[HTTP] GET...");
/ {$ d' Y/ j* E! {' L& G; ~ - int httpCode = http.GET();8 j+ j9 r r4 T+ c# d
- if (httpCode > 0) {/ Y' B- y$ M* z2 o% g
- Serial.printf("[HTTP] code: %d\n", httpCode);
! D: A& ~+ r/ n - if (httpCode == HTTP_CODE_OK) {
$ _6 N3 r& \% z k( o - String payload = http.getString();
% A1 W& Y. _9 l, f - Serial.println(payload);
; s# U3 v _2 A - Serial.print("\r\n");6 E: k9 y7 l x! K! j) \& \
- return payload;
0 c! `8 w" d! ?* s. x - }0 T* n# R1 \' s' l" b
- } else {
" y. I2 }. X$ F q$ @ - Serial.printf("[HTTP] GET... failed, error: %s\n",* A; U9 s+ k$ W% ]8 J) _. M8 z
- http.errorToString(httpCode).c_str());- A! T& u( l! ]
- }) u. C# ~+ I& F8 f5 ~+ P
- http.end();6 }2 u. D f# x
- return "";, X/ D; r; o# r7 c- U
- }- E& g% z# y+ [
- }! \+ t- {* W. [ y( b L& M& g
- void mainAction() {
9 s( M3 ]0 q9 J! t/ q - // 发送请求
8 r! N1 v) i% d: @ - doGet("http://google.cn");
$ }0 w: x& ?6 c- j% j - }
# o& R8 c; ~$ y) L
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