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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 ^$ A& W0 {4 D* O/ r: @! T- #include <ESP8266HTTPClient.h>* J5 V. B c! F' k
- #include <ESP8266WiFi.h># f, G; @4 k# c' P
- #include <ESP8266WiFiMulti.h>
: x9 @+ y) W" g5 E. u: F - #include <ESP8266WebServer.h>) \5 E- v; p; D4 \* {5 M
- #include <arduino.h>
8 b7 I$ w9 G- C3 p - ESP8266WiFiMulti WiFiMulti;
( N. |5 S0 d+ E! k5 u M& w - ESP8266WebServer server(80);( w% z) ]7 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>";" q6 l! O0 g% e( b8 Y# W' O: h* U) x
- ADC_MODE(ADC_VCC);* v) U% E, K4 m M4 K; S
- void setup() {
% D7 W. b0 R1 m+ E c$ c# [' W/ ^7 | - Serial.begin(115200);; f9 `- M1 l/ _. {8 j1 Q4 L
- Serial.print("\r\n\n");9 z( ?. F7 r& D: Y6 \
- pinMode(2,OUTPUT);
( x6 y' M" e( L$ i7 p - // WIFI
; {, d* q+ i% H# \5 { - WiFi.mode(WIFI_STA);
# ?; i# l+ F2 U, `/ W0 f% p - WiFi.hostname("Sparkle");
- {1 F, ^( \# F3 U8 d - WiFiMulti.addAP("wifi ssid", "wifi password");9 B. Z, k' T3 m
- int tryNum = 15;; k5 e, u5 I* |9 T l0 \
- Serial.print("Connect WiFi");3 k, \& N6 L, s I" {# J
- while (WiFiMulti.run() != WL_CONNECTED) {, F& C' G1 `9 C# V, n: H2 s+ l1 s2 @
- digitalWrite(2,0);4 u8 \1 v$ ~/ I' X! Q; Y$ `
- delay(200);! ^! e1 ]7 R) ^* Y' D
- digitalWrite(2,1);) g# m: q) D5 N" g9 A
- delay(300);+ a- X% j# n q2 S) u
- Serial.print(".");
! k( |1 c) f! { - tryNum--;
$ u7 }) Z& M/ i - if (tryNum == 0) {
* K+ m4 O- o$ U - // 1min
1 I$ [# o l% j) N - // ESP.deepSleep(60e6);7 H5 e: s! ^: X6 o; Y: ~, t* ], |
- ESP.deepSleep(0);' ^/ N+ B- L3 Y( f* @3 _& E R
- }
' |+ T( ]% L8 F' t, | - }! k5 J/ @/ O8 A- [1 g1 \
- Serial.print("\r\n");( b4 ]: `1 h. N$ z
- digitalWrite(2,1);1 O% T. E& }: o2 S
- Serial.print("IP address : ");) }5 t5 z5 K* L' \: K$ h9 c
- Serial.println(WiFi.localIP());
$ P# H+ k; z {+ @ - server.on("/", HTTP_GET, [](){! x$ b- f3 B- ~0 g9 ~
- server.sendHeader("Connection", "close");; N* o* t# R& j8 B6 u$ m7 t1 H
- server.send(200, "text/html", serverIndex);3 u! f% A4 d+ w
- });
; U0 h0 {: c, d) p: u - server.on("/update", HTTP_POST, [](){
* M+ o W8 H4 c6 F& ~% w - server.sendHeader("Connection", "close");7 U3 N6 g2 z r+ k' R
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- n/ ?4 v% k' j1 |1 l& V7 A
- ESP.restart();* |. z6 B( r1 B6 |6 x" a6 \# O
- },[](){
3 A5 T) a$ b+ [7 _& P1 g - HTTPUpload& upload = server.upload();
& T( |( Y h+ P E) T } - if(upload.status == UPLOAD_FILE_START){- ?; A% `7 b, \$ d
- Serial.setDebugOutput(true);/ ~3 K& T' Z' f1 N& I3 C
- Serial.printf("Update: %s\n", upload.filename.c_str()); l, V: r( B" y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" D6 m( b- p. v2 V% w
- if(!Update.begin(maxSketchSpace)){' r4 |/ \9 P, g3 a5 v
- Update.printError(Serial);
) Z' i# f, \ G" C - }' G% a* \. |& j1 T; h
- } else if(upload.status == UPLOAD_FILE_WRITE){
# q; o7 b* P& s6 k# S - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! @* S7 R+ Y; V; _- ?0 v
- Update.printError(Serial);4 t% L' m1 C' H; v# \5 k* M
- }+ g. v9 M' ?1 a, d+ ?1 z# u" V5 _2 @
- } else if(upload.status == UPLOAD_FILE_END){
! {3 |6 l4 \2 p% E3 R - if(Update.end(true)){3 i7 s" I9 s. }5 U7 Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' ^' D' k1 Y$ h" k - } else {7 c# Y8 b3 M' E. c4 W% O( z
- Update.printError(Serial);
- s8 m' d( P! F- k* T# I4 L - }8 T: H7 H( h5 ?3 _! P9 N+ q4 C! r
- Serial.setDebugOutput(false);
+ O0 p7 D: p' |, U - }
# D B/ t# V. O/ |7 N# g: G5 c - yield();
. m! I- l& Q9 v2 D6 p - });
/ d3 F+ {, }2 N8 g9 s -
5 t, i! B9 k# V) a3 B5 [6 Y - digitalWrite(2,0);; L9 a) b. p, F( ~, M+ M
- mainAction();5 P+ M0 m) N/ F. r# [' P0 O
- if (digitalRead(0)){
* t D6 w6 U" H; H1 y* n - ESP.deepSleep(0);
9 I0 X9 k( G% z - } else {6 S }2 b6 F, D, F5 L H$ h
- server.begin();
( K! ~0 ^% v m! i - }0 G7 a' P/ \7 R/ C
- }
" d8 }' j- v' G6 ^ - void loop() {
% w4 X7 J- B5 G4 n" {, E3 n0 L - server.handleClient();3 K( o; D5 t9 A, s1 y
- delay(1);
6 F. }2 R/ u, g - }
% M( p+ C# H! y- r! e - String doGet(String url){
* u4 P, i# D! F - if ((WiFiMulti.run() == WL_CONNECTED)) {9 T9 p( Y Q" S, b/ A0 I' z4 Q
- HTTPClient http;
6 t& ?7 B( s$ q. ^9 [/ u, m - Serial.println("[HTTP] begin...");. H+ _. H! w( B- [. H
- if (url.startsWith("https")) {/ u( o6 L- d1 Y9 M- m' U- F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ v% T2 M5 R: z- h) F
- } else {' H2 d" R- w, U6 ~
- http.begin(url);1 h3 F! l8 A4 I# D3 w
- }
! x* K2 h/ f& R& U& U" u5 w D3 ? - Serial.println("[HTTP] GET...");
' `0 G5 [& ~. j+ G4 Z - int httpCode = http.GET();+ ^6 Y- c) z) C" t7 b' f2 J
- if (httpCode > 0) {! h T8 D8 @- x) h/ Z
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ V' ^( ]* R7 {6 Y4 f9 _2 Z* b - if (httpCode == HTTP_CODE_OK) {
) s( a" n K5 C+ ~: b - String payload = http.getString();7 l& q/ a7 n4 _5 s4 c2 W1 b2 K
- Serial.println(payload);
9 h7 V, u+ u6 X+ Y+ |4 L) x) k4 w - Serial.print("\r\n");
2 X2 f, |9 J+ a+ O2 z4 q) u# ~6 O - return payload;
+ c% X5 W9 A% f - }/ Z% F5 O7 @9 t) v6 ]$ w4 E
- } else {; F# N. t9 w5 W5 u+ H# s. H0 ?0 l
- Serial.printf("[HTTP] GET... failed, error: %s\n",1 j+ |0 a; \: b. o4 B. ]! G. F3 C
- http.errorToString(httpCode).c_str());* x4 r. L: P; s5 p1 `: T C8 |
- }
# N- n6 w! o, u8 i* N: S3 d - http.end();
% W6 k8 f3 {+ \$ n. D1 Q - return "";
/ n+ y, x4 _: ]( d) p5 l) r2 [; R - }
7 p$ h9 A0 \2 M( A - }
7 M W G* X. B/ r0 e) @0 d8 |; N - void mainAction() {! ~- ?: P% w$ I9 ?. u- B
- // 发送请求
2 a. [6 D' Y7 f% a' } - doGet("http://google.cn");) Q8 z" R$ I; f! T7 [' N0 s
- }0 E7 s5 O, ?; B$ A
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