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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)
5 L, {# {8 z0 @3 s% J3 F- #include <ESP8266HTTPClient.h>& z9 {5 ` b& l
- #include <ESP8266WiFi.h>9 R9 I; R b: B5 y& z9 c" M
- #include <ESP8266WiFiMulti.h>
* c; N# `. N }+ U5 m - #include <ESP8266WebServer.h>7 B, L3 i- c( ^2 [* [
- #include <arduino.h>
8 k7 F4 S4 M1 z( L( S" T* G- Y - ESP8266WiFiMulti WiFiMulti;
$ e* s8 ] `- ]7 y7 i - ESP8266WebServer server(80);
5 I) a) m# F: u$ W& V& H - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
^# ]& K3 I9 y" Y - ADC_MODE(ADC_VCC);9 p3 R# k r9 y- r4 H
- void setup() {
- A, E4 l9 ]6 s2 U' v - Serial.begin(115200);# Q9 h/ J+ S) w% m$ x3 K
- Serial.print("\r\n\n");
4 n2 c" h' Y) C; |5 [7 N - pinMode(2,OUTPUT);& {% T1 y/ u" U3 {9 X1 s2 \
- // WIFI
- k8 H2 h/ @( V* h - WiFi.mode(WIFI_STA);
9 _4 L( p" D& A - WiFi.hostname("Sparkle");
j: d3 I+ P6 j E2 X - WiFiMulti.addAP("wifi ssid", "wifi password");$ o( Q: P% b5 g3 K; {
- int tryNum = 15;$ v# d7 \! Z1 I9 o
- Serial.print("Connect WiFi");
$ M4 q s3 [8 z" a* L - while (WiFiMulti.run() != WL_CONNECTED) {
% t' W; h4 ~; }* } - digitalWrite(2,0);, i4 U9 y* i( a0 p0 s* i p
- delay(200);2 M# q8 ]( f: w2 x1 v8 f; A
- digitalWrite(2,1);
, h5 e+ t8 O& O3 p - delay(300);% m( h# _) ]3 r( l6 R) e; F T
- Serial.print(".");
- ]$ r/ D" p: x8 E( v - tryNum--;
/ r% B& [8 R ^2 H6 U - if (tryNum == 0) {
$ i- D4 m( r% S - // 1min( I1 W& ^2 t$ c! ^3 ^! k: x( r
- // ESP.deepSleep(60e6);
. t3 p, H ^ }" H5 u8 P - ESP.deepSleep(0);
8 x3 O% p' e$ M; S$ X/ \ - }1 L3 i' D+ [7 i5 l9 N6 ~
- }
q" B$ v& @' h3 {% r, y0 Q j - Serial.print("\r\n");
% D1 @& G- d1 r1 k- t6 x" |7 h0 v, M - digitalWrite(2,1);
& B1 h, Y6 k1 e2 m - Serial.print("IP address : ");
/ f2 J: e# ^! D& ?0 i1 ^; D - Serial.println(WiFi.localIP());3 x" j* `: [4 o, p) @( B" A
- server.on("/", HTTP_GET, [](){
8 j" {) |( b% \3 z, B1 K; u - server.sendHeader("Connection", "close");
7 i# n( p# f* Q5 R - server.send(200, "text/html", serverIndex);
1 S& o4 x r* j3 s# a6 ^ - });6 Z2 K0 V& {! @, B% ?5 w; v& P
- server.on("/update", HTTP_POST, [](){
" y8 y6 }9 X- `! e5 w - server.sendHeader("Connection", "close");. D2 {- d$ ?+ h2 S6 K" V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# Q" i- a8 H% s/ X2 N# I
- ESP.restart();
% X# e1 c2 V6 j0 W: B - },[](){0 b0 B z8 Y* B4 A! ~( n8 |) h
- HTTPUpload& upload = server.upload();7 U( b# W5 k% ]8 n9 l- T9 O
- if(upload.status == UPLOAD_FILE_START){8 |8 M& L f' F$ x+ O. N
- Serial.setDebugOutput(true);
, B% _1 `) z; z$ R0 u - Serial.printf("Update: %s\n", upload.filename.c_str());
" G2 l3 J3 y+ i" n2 N8 A3 l - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 h3 K! u4 H/ M* G9 a5 g; D# o5 U. H - if(!Update.begin(maxSketchSpace)){( O# N: ^/ e( s' p8 f0 |7 b
- Update.printError(Serial);$ r( d0 |6 B- L' x. ?
- }. P. V1 R. k0 N3 @1 v, o# z2 e
- } else if(upload.status == UPLOAD_FILE_WRITE){" `, {* ]: ]2 a% k3 S, p
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 N0 f" P+ `3 F/ l8 W) P
- Update.printError(Serial);
" Y2 z# [( k2 ?: Q! W+ [# J - }+ d% T* g, B2 d0 Q P5 X& w
- } else if(upload.status == UPLOAD_FILE_END){9 q- T3 v+ w! D7 c5 `! J0 n
- if(Update.end(true)){+ M. R' f, M; @
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( @' h+ v& j2 {9 W
- } else {# F+ N8 o W% V- `- p! M/ e# p
- Update.printError(Serial);7 u5 _ e2 @8 ^$ x5 y
- }
* r* u+ l- U8 j$ U, y - Serial.setDebugOutput(false);- a1 q2 y/ u* v8 ^" v7 l
- }
! v6 G( V7 n% ?0 t. z2 z4 m1 U. d - yield();7 d; T8 X5 g" M
- });
7 c0 o+ p/ x0 w5 A# Q- } - ( [* J! d t% t7 |
- digitalWrite(2,0);2 _6 R# x# `. O2 O
- mainAction();: c9 c' F- w8 t' X1 R+ M3 L- L
- if (digitalRead(0)){# r! Y2 O. E; m
- ESP.deepSleep(0);
5 a+ w( m. m) M! l) L$ [% f - } else {
$ y6 _% ?4 M% a3 j' p& t - server.begin();' H& d* H5 Q' P% d, x
- }1 q) O/ ?! {: W* {. r) O/ L
- }
5 | }2 T, P1 H/ V7 u/ V - void loop() {1 b& T, o2 G3 P) Z6 z
- server.handleClient();$ t# D0 F _2 z& B. W$ @% O9 N4 @0 b
- delay(1);
- n. p# ~6 r/ m - }
5 F. }' l/ X0 z& G: ?: D$ I - String doGet(String url){" [ u4 \3 @! f+ m2 `
- if ((WiFiMulti.run() == WL_CONNECTED)) {& Q5 r4 q' ^6 K$ m
- HTTPClient http;8 X5 d7 M% `& F M& g+ l
- Serial.println("[HTTP] begin...");/ B1 n# K+ _ m
- if (url.startsWith("https")) {. u7 x4 H. B9 I! z& N! F8 R
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) K+ q8 {/ x$ t3 r* M
- } else {4 g9 t' Q+ h/ X* T6 j
- http.begin(url);
, E) J1 p# D0 g& q2 o - }
+ M$ u9 A% z! A! j* E# F - Serial.println("[HTTP] GET...");9 ]( @& p% {% n" T8 z. e3 U
- int httpCode = http.GET();* }! n1 q- a* {; T9 _4 E
- if (httpCode > 0) {4 U6 _. V: R3 `0 v. n! J& h
- Serial.printf("[HTTP] code: %d\n", httpCode);
% a0 A/ L! B+ U, Z2 E - if (httpCode == HTTP_CODE_OK) {
$ h" \2 U+ V% y( R% u - String payload = http.getString();; f% v. R7 M* y& O$ f) ?
- Serial.println(payload);6 a! f% f: T6 O" T
- Serial.print("\r\n");
, @: A( @% u( i) x( P1 }$ s - return payload;3 P6 i& n/ j; q" J/ ^
- }
, X/ A" G# j/ q4 | - } else {
* `2 o! Q% c, s* e) W3 n8 b - Serial.printf("[HTTP] GET... failed, error: %s\n",* \' h8 \3 c$ K- v5 E+ k
- http.errorToString(httpCode).c_str());6 q- G' r- E4 ^1 M# E& i- W$ y
- }' b( i/ ^( ^: h* L! i
- http.end();
/ q' j/ E* O. l4 Z$ h' x - return "";* i5 N$ G; b7 X$ R, Q, ?
- }
. F* I; Y) t; E2 i% `* q - }
9 F( E+ ~* b! p. H9 G" I/ A# r9 ]% d - void mainAction() {
; l/ I, G. g8 E# c' i - // 发送请求+ D# [$ m/ ~8 D0 E6 e7 r3 X, \
- doGet("http://google.cn");
( [' F) G) F1 {. Q/ \9 ]8 m* P - }
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