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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)# {( L: E9 L! p7 F5 E
- #include <ESP8266HTTPClient.h>: c; Z2 b- c2 A+ ]* Z% w
- #include <ESP8266WiFi.h>! k9 q: H# { ]7 t3 [* j$ Z9 A
- #include <ESP8266WiFiMulti.h>
9 D1 d+ S ^* T e( q6 P - #include <ESP8266WebServer.h>7 v; X _% T; f* h e
- #include <arduino.h>
% ]- J. a* P; g8 I - ESP8266WiFiMulti WiFiMulti;
e6 n3 G& w0 B M2 Q, v4 B! a - ESP8266WebServer server(80);
4 e& l" s0 `' B. i7 |0 S0 z - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 m$ e. h1 c9 `) c1 r% X g
- ADC_MODE(ADC_VCC);! c5 d3 Z: [) f
- void setup() {
0 q5 M" Y- f0 k* J - Serial.begin(115200);5 S7 X( x: B S+ |8 R: |& v- x
- Serial.print("\r\n\n");5 C0 f* A2 ~1 t: ~( X) k
- pinMode(2,OUTPUT);( n0 }9 p" t* C! f
- // WIFI
3 }: y6 w6 ?9 E& x. C% g8 g* B5 a - WiFi.mode(WIFI_STA);! O! @- {1 `4 {3 {$ Y. d$ ~
- WiFi.hostname("Sparkle");, n- i) G L5 A* u: n; q+ j
- WiFiMulti.addAP("wifi ssid", "wifi password");6 `( M% L1 d$ o4 w1 Q. O& o
- int tryNum = 15;0 s4 i) M& @# ~' I# x8 P! u; X- {# T
- Serial.print("Connect WiFi");
- k0 n4 ^5 l7 q* ?$ R* n$ m8 k4 c0 k - while (WiFiMulti.run() != WL_CONNECTED) {
) Q& Q3 Y% O5 M* o# l" _( M - digitalWrite(2,0);
' M) Z* Y) N' F) {% w' I - delay(200);
- p- p% T; v+ G, T - digitalWrite(2,1);4 ~& M& A1 V( O: O0 J6 I! m3 W6 Q
- delay(300);: x9 y8 `% n. k- r2 {% h1 X8 E
- Serial.print(".");
A4 G% Y+ w( y. r2 r; S' F - tryNum--;/ O1 `& a$ \$ n% p
- if (tryNum == 0) {. b" f8 W, R# j3 Q( }) m
- // 1min4 e! K/ S5 d' F( u
- // ESP.deepSleep(60e6);; Q, f0 I( y s. f
- ESP.deepSleep(0);4 Z9 Y+ ^$ }+ C" K1 z7 G
- }
6 |! Y$ v+ U4 D2 A2 ]& y6 Z - }
0 ?; n1 \5 B; a+ H) E% e - Serial.print("\r\n");7 o* x/ n9 p" s1 s# {0 X
- digitalWrite(2,1);1 ^* f# G8 u5 G" F. Z" W- S
- Serial.print("IP address : ");3 e7 s' w z- V( o! ]1 T I9 q
- Serial.println(WiFi.localIP());
; P, y6 K' f. U' { - server.on("/", HTTP_GET, [](){
7 F$ u) O' C9 v0 C+ a, m6 }- d - server.sendHeader("Connection", "close");
/ q/ I) A0 e: y5 ?) D - server.send(200, "text/html", serverIndex);
% F4 w8 s; t7 s" P6 o. d9 c" Z( w - });
: k1 D8 R( u% ^& }) m0 Z! }( v - server.on("/update", HTTP_POST, [](){
) W+ P5 K$ G- j: N/ `6 ^ - server.sendHeader("Connection", "close");+ ]3 O N8 G! P$ S! ~7 K( t
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ ]. q2 ]. [, f' J; }5 I2 D5 p- b - ESP.restart();* I2 S x* g7 @3 C0 V( ?: b6 g
- },[](){
& s: ~* Y- p1 | [ - HTTPUpload& upload = server.upload();' W" o, T( u" c, N/ a0 \& u0 X
- if(upload.status == UPLOAD_FILE_START){
+ T5 Y- q! C4 l% Y& Q, X2 l - Serial.setDebugOutput(true);
$ d- F# e) `8 j, h* r j - Serial.printf("Update: %s\n", upload.filename.c_str());9 n+ e: z6 h" {; [4 Z Y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 @* g9 [/ ?7 A$ I0 W' T# B/ k1 G
- if(!Update.begin(maxSketchSpace)){8 g+ A ?3 M# o* N# i4 d _% ]! Z
- Update.printError(Serial);; {0 k1 D$ Z! Q: J# M3 n; T7 |
- }
1 q h' }: f0 D - } else if(upload.status == UPLOAD_FILE_WRITE){/ }3 w& j, z ? m4 n! K
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ _7 [" R8 Z8 [
- Update.printError(Serial);
$ L" z" G9 {# [3 k - }. q+ D2 P+ {2 B3 N" N
- } else if(upload.status == UPLOAD_FILE_END){
& U( C8 K. u! D$ R+ C0 W3 i6 X - if(Update.end(true)){
4 X* r! _1 h( x- H' J - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* \, r; H O& P0 t! B1 M8 | - } else {5 u& G; b4 _# S: | f4 N
- Update.printError(Serial);
j# k( a$ j2 b6 T! \7 w - }6 ~+ ^3 J" K2 G
- Serial.setDebugOutput(false);9 }' D. `- |, z3 |; h" J
- }3 E& ^: \' n- W/ F5 T- i$ U- l
- yield();
* }& D5 W" Y2 H4 G - });7 @7 j& r2 R+ r) V4 c* L z
- , \. [( v# F% s" n
- digitalWrite(2,0);
6 Y. s. r. X& V4 I. a/ t( ^ - mainAction();
0 q6 R1 z9 d/ T" z3 F% P3 F% B - if (digitalRead(0)){
5 U3 _' {8 S4 q) N. g6 k9 a - ESP.deepSleep(0);, @' C, _) W# j- |, c+ u
- } else {
- s: G) q2 q6 l0 B0 H9 t6 @) W, [ - server.begin();
# A8 R2 }3 m# m( k4 k$ e - }0 r/ |! g0 l. P! M: {
- }% P. V7 `1 I& m2 F
- void loop() {5 h4 Y0 u0 S3 g; L: j$ D
- server.handleClient();. D9 |2 R7 V- a' U
- delay(1);% w+ j4 k1 r- b$ t8 D
- }3 ]% q. r% ?1 y/ Z
- String doGet(String url){
# _5 n- S2 d% I3 U0 N7 D7 t - if ((WiFiMulti.run() == WL_CONNECTED)) {+ ~8 ?6 n* X i: }6 o
- HTTPClient http;" f3 h6 T7 r3 X5 N1 d
- Serial.println("[HTTP] begin...");2 i* _* C7 a' l" s/ o
- if (url.startsWith("https")) {
$ ]5 |( i: ~- w9 e5 T& W - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& \& i9 p/ W( O' m( m7 t; F, H& R/ x4 k4 x
- } else {% v* e ^9 q$ R6 x, C
- http.begin(url);
4 K- y6 b6 g$ M) d: w - }
* C2 n8 r1 x( F; W, R - Serial.println("[HTTP] GET...");
8 n) d# \: o' P( ~; h! b - int httpCode = http.GET();
9 u3 v- f1 n% _9 E5 p9 k - if (httpCode > 0) {
/ X& k: `9 D9 Y7 B) A - Serial.printf("[HTTP] code: %d\n", httpCode);
, R* T% A# B# Z! k( h3 ~8 m - if (httpCode == HTTP_CODE_OK) {
" s- i; E9 E* J2 y - String payload = http.getString();
! Y; v- n5 H6 O, t& c2 @$ e* W - Serial.println(payload);0 }( ]. u6 l3 o8 ]
- Serial.print("\r\n");
( y e7 \% f# y% h1 G; [0 `; d - return payload;& E' A5 F) F ^8 H5 q
- }" H7 G! ^2 W: k6 v- b
- } else {
# B( H0 v. H2 N) K8 L1 v - Serial.printf("[HTTP] GET... failed, error: %s\n",
* U4 _" |: ]& B" _% U- p - http.errorToString(httpCode).c_str());4 t$ ^3 d2 R' `; ^6 z g6 g
- }& M1 m. |4 m, s6 p( w1 Y2 T
- http.end();
7 w& V `- h3 I7 m* H - return "";
* O0 v- \7 V. W! a" K - }
* P# k+ Z/ J" m8 s - }
. p; J6 G2 W4 ^# `9 Z - void mainAction() {
$ u+ g+ e% }9 g w - // 发送请求8 h) T% E* J* P( X6 I" N
- doGet("http://google.cn");
* H* A" R2 k6 d/ a! H& M% g: Q - }
1 K/ y4 D: X7 T. |8 u; R }
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