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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)1 Z9 v+ g+ ?& b& l) ^$ Z( K( _; d
- #include <ESP8266HTTPClient.h>9 b+ l$ V! H6 L
- #include <ESP8266WiFi.h>
& S$ r! u' b3 `( t9 G% L - #include <ESP8266WiFiMulti.h>. g$ }% b; i7 V+ F; p
- #include <ESP8266WebServer.h>
9 h: ?+ m& c' k5 p$ t - #include <arduino.h>
( ~* U4 C! {, K* M - ESP8266WiFiMulti WiFiMulti;* ]& s E7 @# Y* A% Z% r- E
- ESP8266WebServer server(80);
/ k3 d2 T( N% R$ \* v, U" } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. d" F4 y1 N5 R. |& u& q! J# L
- ADC_MODE(ADC_VCC);
- E7 E# {) O0 D6 \; k - void setup() {/ e2 M3 I$ `- J
- Serial.begin(115200);
$ M9 w% z4 e/ `3 a% f! j - Serial.print("\r\n\n");6 f6 O8 ]9 R6 c1 c5 T% Y7 y4 k9 I
- pinMode(2,OUTPUT);
& I6 j! h: Z4 F! f# N - // WIFI
# ^" Z& j' \4 [' v2 R* B, G - WiFi.mode(WIFI_STA);
+ P. l8 b. \4 `# V) T3 [ - WiFi.hostname("Sparkle");
, S5 Q6 U. N- [, v- M( ~ - WiFiMulti.addAP("wifi ssid", "wifi password");
k4 c; i. Z/ V8 X3 h+ t* O3 @ - int tryNum = 15;
# \. m2 B) W7 {# n - Serial.print("Connect WiFi");5 s) N( ?, p/ w# X; s r% F! \% b
- while (WiFiMulti.run() != WL_CONNECTED) {2 d& b8 A% }9 _. S# I* c+ {
- digitalWrite(2,0);! J/ _" f( l! T8 P5 A b
- delay(200);) X3 Q* O A( N" ? j( p N1 ^8 a
- digitalWrite(2,1);# r- P9 l$ J2 j1 ?" D) A, {
- delay(300);/ U/ m! X$ ~2 [( b
- Serial.print(".");
; U) k" N1 {( s3 \5 E Z# { - tryNum--;# p3 F/ H9 q8 Y0 y, u
- if (tryNum == 0) {
: G' G. _! g) A9 Q# e8 Q- _ - // 1min/ r; O% P/ \7 `7 n, Z J
- // ESP.deepSleep(60e6);
" m3 @& @# q) p$ ^) p4 G# c - ESP.deepSleep(0);
+ f) k2 _+ N* ?& ^( u - }1 A8 d7 a* ^( ~& I* u( E0 [
- }
1 y1 P2 T& f4 F d5 b) [ - Serial.print("\r\n");3 M& a4 g* H3 j& h# j8 H7 y2 K
- digitalWrite(2,1);# a. |: ^5 ^+ ? Z6 L
- Serial.print("IP address : ");% C8 c) n- }' }" v1 e D
- Serial.println(WiFi.localIP());# q9 c5 c7 }7 b: S* N+ ~) K
- server.on("/", HTTP_GET, [](){( r& ]6 J& r5 v" C# W* |+ I: I
- server.sendHeader("Connection", "close");1 k9 H* Y3 ^2 i
- server.send(200, "text/html", serverIndex);
2 L0 {/ @, F/ U! E9 K# X$ e( T2 } - });3 J/ m. j1 ?4 e( g
- server.on("/update", HTTP_POST, [](){& ]& n$ M8 G1 P
- server.sendHeader("Connection", "close");
& m M) X( g3 K+ p. Q0 ^! b( @6 M - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( Z% H- K0 A) \1 M9 X s! A
- ESP.restart();
x- N+ \: F- v - },[](){
! M) G- e w1 C( J - HTTPUpload& upload = server.upload();, l, R- d- P- k \. _. i
- if(upload.status == UPLOAD_FILE_START){5 y8 R5 ^6 M& M8 x2 h/ s' y% s J
- Serial.setDebugOutput(true);$ ?. F) z' a1 d2 N/ \/ \6 I
- Serial.printf("Update: %s\n", upload.filename.c_str());( h8 R/ n; b& I2 z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 b7 G( W4 ~2 C: c- S
- if(!Update.begin(maxSketchSpace)){
; a- \7 v0 i2 O8 d2 x. o, K - Update.printError(Serial);' E9 Q5 n, I2 T" S% ?1 Z
- }
3 B$ X2 t, s4 L# Y$ T7 R( k - } else if(upload.status == UPLOAD_FILE_WRITE){
7 `, T$ d7 L/ A) \! l - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" D0 r4 `) g6 {% N i - Update.printError(Serial);/ |% D8 Y, [0 U5 A( A
- }/ s, |1 _9 {* {! S
- } else if(upload.status == UPLOAD_FILE_END){
1 Q/ Y* X V9 l6 F6 u" y - if(Update.end(true)){
* @, ]% B4 j+ W3 ?7 Q* l$ @ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( Z% L0 W3 w! ^. N, u
- } else {+ P) v. N4 a3 n" h5 F
- Update.printError(Serial);) r8 Q! v! U4 B: C7 y6 |" _6 h
- }0 o3 d. p: H& o F* ~% V; o* p
- Serial.setDebugOutput(false);8 @4 n( K) I1 I$ C7 i8 e$ i4 B: m1 B$ t
- }" F; b# b- r/ T8 S6 s
- yield();
8 ^3 V9 \- l. _/ ? - });
n E# h ?, m# r2 {+ f! Q! y& P - 7 x& n5 u. [# V3 _& e/ n7 O$ e
- digitalWrite(2,0);
3 ], J3 Z' H f - mainAction();4 e r0 o J X8 _+ m' L1 }
- if (digitalRead(0)){
) Z, o4 c0 D# f$ N/ Y - ESP.deepSleep(0);
- Z5 U6 n8 O: E! P( F$ A1 c - } else {
( I0 H% F. o6 U, |# Q& F$ I$ J! x4 L) _ - server.begin();
; K) E2 E1 y1 X% h6 n - }: @# X3 w* u, p
- }0 b/ |; W9 F7 n" L- \
- void loop() { g/ H P8 h4 P2 W R" F! r1 H
- server.handleClient();
! e* q3 A& F# Z: x2 l2 k& U8 E - delay(1);2 V8 j; Z$ l' Y/ f
- }; p& L2 a' C9 e; I+ h
- String doGet(String url){0 q0 v' o+ d, l( @8 B+ s4 L U
- if ((WiFiMulti.run() == WL_CONNECTED)) {4 X) W6 g+ n& D
- HTTPClient http;
4 S {$ ]# {3 T* t: U, c - Serial.println("[HTTP] begin...");
" F# c+ C3 G' u0 s: r0 h( b - if (url.startsWith("https")) {) q' Z) ~3 r2 W8 [) O
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 w) |& L f Y3 J0 x! z
- } else {
* Z" o. ~8 @" ^6 q - http.begin(url);; j9 x! m8 Z% }: w7 _' p5 c
- }
( U, V. J8 b8 V# k0 W* z4 N - Serial.println("[HTTP] GET...");
/ Y* L5 v' j H, O; U" h' Y7 @. b, x - int httpCode = http.GET();/ M! G. P) e: C. f/ w) e! }
- if (httpCode > 0) {
5 |/ P( K" ]# e/ ^/ P2 V - Serial.printf("[HTTP] code: %d\n", httpCode);& x! n( D3 r. u1 m5 q
- if (httpCode == HTTP_CODE_OK) {
7 r2 r$ p+ X- V# y9 t/ q# v - String payload = http.getString();. e4 ^1 R9 y/ K& P7 q2 T
- Serial.println(payload);
: ]% ~: ^ x( H; s0 A' C# v - Serial.print("\r\n");
1 j* P f0 ?7 S" t$ J - return payload;
* @1 |* U; O7 F& x4 k0 \ - }: S: J9 u A0 N- q4 S2 G
- } else {
+ d+ k! d( M% q8 \. n - Serial.printf("[HTTP] GET... failed, error: %s\n",' b; S+ w% Y3 O0 W+ Y
- http.errorToString(httpCode).c_str());
4 v7 |! f) F8 _, S; F; z - }: ^* S( M% o+ q& X b
- http.end();
( s3 ~! f! p7 N4 x; i - return "";; ]: g. }' n i
- }. x4 n+ R5 m7 z' {0 w) L
- }; A \3 g5 k; Y( l& y5 Q
- void mainAction() {
/ ?! {2 Y( Q* h - // 发送请求$ h. G0 L7 T# J: q+ g* N l
- doGet("http://google.cn");
* n3 I [$ T8 Q% X - }
2 ^1 d4 d/ {6 B- @* v! \; @
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