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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)( n3 b w' o6 q# o# p. X
- #include <ESP8266HTTPClient.h>! Y/ W! Y6 a4 A
- #include <ESP8266WiFi.h>
. t6 [8 \9 T% H) o - #include <ESP8266WiFiMulti.h>8 t- d, d: F( t B4 |
- #include <ESP8266WebServer.h>* B6 ~1 [& _+ d
- #include <arduino.h>
8 A- c; Y" v/ `0 a! M& F - ESP8266WiFiMulti WiFiMulti;
) S, V% I) b- H A4 L - ESP8266WebServer server(80);/ d! s% T! m8 P3 C7 b5 H" Z) R
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* h0 ]6 ~2 ^% \- V$ L' R7 u& M+ w
- ADC_MODE(ADC_VCC);
7 z5 `1 }/ G1 ]* L$ A7 f# f8 k - void setup() {
/ N; B: m0 \' h- S3 n2 j3 W4 Q - Serial.begin(115200);
' n; X4 O- ^7 p, f* w& }) S - Serial.print("\r\n\n");: f/ k" l6 X/ D& I/ f
- pinMode(2,OUTPUT);3 {" A, b: S. _" B! e# u
- // WIFI1 j) i4 z) h3 k. s
- WiFi.mode(WIFI_STA);
' ?# S& r+ B1 d0 W. j/ J9 Y" C: K - WiFi.hostname("Sparkle");
! s6 _) r5 Y4 T - WiFiMulti.addAP("wifi ssid", "wifi password");" S0 a- Q: C% f& B) Q4 k
- int tryNum = 15;: d- h1 J0 F; C
- Serial.print("Connect WiFi");: G& e2 O" B& D. o& g- r, a1 o
- while (WiFiMulti.run() != WL_CONNECTED) { g! L; b! \5 X" Y0 X- u
- digitalWrite(2,0);: i* ?$ y# [9 F' C7 t
- delay(200);$ K7 g! G i, A0 {* ~% R
- digitalWrite(2,1);1 D1 b, a5 a( S/ D
- delay(300);- T6 M5 \. h, x
- Serial.print(".");2 B. @5 ~7 T$ F" s! B
- tryNum--;) C" T9 I" t s; E" d
- if (tryNum == 0) {
; x1 H, r d; k, j- d - // 1min$ ^ N0 c7 A* V
- // ESP.deepSleep(60e6);0 w+ v. R. P& O& v
- ESP.deepSleep(0);
- M& K3 q& m1 a" P. X4 T2 ~' N* Y) s - }
1 Z# f& m8 T ]& k - }
0 z; M9 |! F" R# Q% Y - Serial.print("\r\n");0 Y8 _8 p/ _( q, B" W( N
- digitalWrite(2,1);0 j* p; U1 B! ~' m1 r. Z$ ~
- Serial.print("IP address : "); q& q2 ? s |, {
- Serial.println(WiFi.localIP());
! w t9 E0 z. f - server.on("/", HTTP_GET, [](){
. r9 ^- [+ a! p6 l: R - server.sendHeader("Connection", "close");
6 n6 e$ U8 |4 R - server.send(200, "text/html", serverIndex);
. F' h! K$ Y! J - });2 k! ~, x6 ~" V
- server.on("/update", HTTP_POST, [](){8 r7 _ s* R w! k
- server.sendHeader("Connection", "close");
; ^4 r% w8 X/ h3 S$ ?% A - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 ?' I3 w0 r- E& ?+ D - ESP.restart();
. F Q+ F% `% ~. S% A% p, F - },[](){
/ a2 T$ X0 i% V8 Y - HTTPUpload& upload = server.upload();
6 \0 x& I7 E, f" o - if(upload.status == UPLOAD_FILE_START){5 Z% w& P, v* M. l& c
- Serial.setDebugOutput(true);7 e' [6 @! X0 _& J3 P7 I
- Serial.printf("Update: %s\n", upload.filename.c_str());: i5 O* b/ D7 o5 y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 r( j& ~' c- t! S0 j - if(!Update.begin(maxSketchSpace)){+ B5 X. B2 K5 S$ o7 ?+ D* I5 j
- Update.printError(Serial);
" m4 t) t" `9 _ - }5 M# B) L# _+ V
- } else if(upload.status == UPLOAD_FILE_WRITE){3 ^4 x6 {/ C$ ?0 u! z- z5 ]
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
J6 {5 \# b- p* [ - Update.printError(Serial);( t3 p$ u' c* q
- }
) w2 B5 ~, ^5 z* V - } else if(upload.status == UPLOAD_FILE_END){
2 o1 `) _6 I1 b - if(Update.end(true)){4 x8 H0 F$ G" ` N" a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 d6 ^. L/ Z) l7 G6 Y Q8 Y - } else {; c" \0 J$ m. z8 T3 p
- Update.printError(Serial);8 U7 Z6 Z0 f" m& ]1 I+ `
- }
$ E6 G Z L! i* C. L5 Y0 ~/ ^$ @) E9 e2 Q - Serial.setDebugOutput(false);
# J% d2 e3 }; B/ y! j' y - }
6 x) x; H! `6 r& r% j+ I; [7 y - yield();
. D1 k) G9 w* l, N - });4 X; y8 P1 C i O0 A( X
-
+ b) t; K+ I7 p! H2 a, V( n - digitalWrite(2,0);
: C6 w2 |, N2 [6 T5 W5 d5 b - mainAction(); v/ q" H! T' x( \/ _/ R+ ]
- if (digitalRead(0)){
' _) X3 Q* i2 J7 {& ? - ESP.deepSleep(0);
: a4 d3 h7 r$ b - } else {
' E7 g- g; P- R7 Y" p8 o, I( H - server.begin();1 i. a G/ k$ b5 q
- }& C7 r- U9 }0 k3 |# J/ P5 A
- }" `0 A' O# Y# ^- a C
- void loop() {
+ B6 f( ~! c8 a+ r$ D C - server.handleClient();" W# M6 i. h8 ~7 z
- delay(1);3 A v- G+ W& @. U) W
- } T& y( n# w2 b3 d" t
- String doGet(String url){
5 m% l J! d8 i. S3 e$ Z - if ((WiFiMulti.run() == WL_CONNECTED)) {
) J9 i+ S, ^/ j* `/ R- [9 J& x - HTTPClient http;' U2 v7 w) O) w9 M
- Serial.println("[HTTP] begin...");
+ J/ M5 E+ U1 |7 T - if (url.startsWith("https")) {3 I; X+ U: H2 _/ x# l) ~
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; x7 Q# h: c( {
- } else {1 Y& P3 m; d, j' P
- http.begin(url);
% g" U: j9 S5 j# y' c, ~4 o - }
: Q( a E' [1 L2 Y8 a - Serial.println("[HTTP] GET...");* Q! Q8 I0 j$ N5 |$ m! p
- int httpCode = http.GET();* W! { ?6 N5 t- a- g# i
- if (httpCode > 0) {
) n5 p8 ]6 n) g0 k: f3 b6 A# n - Serial.printf("[HTTP] code: %d\n", httpCode);
y! t* G9 l% C) O2 M) s: b. P - if (httpCode == HTTP_CODE_OK) {! r: U. f- ?* i5 S
- String payload = http.getString();, k& M/ c. c8 x/ H* G# n
- Serial.println(payload);
' A8 V1 M4 A; H4 V- p; Z' g - Serial.print("\r\n");
: \8 k: a; |3 z+ v# y* L& m- v - return payload;
2 V; G# a$ |$ g* J9 W - }
T& G- w! y, O* c* v - } else {
! X" j) ~6 j k b - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 [1 T6 N0 o1 c4 u% L, [/ R - http.errorToString(httpCode).c_str());
1 v# U6 F; l1 V* i! _9 A6 \ - }
0 ~ H) j# ^/ X& y" L' A - http.end();
& t. V, z, H' b5 O - return "";
% {% s% w; {( P9 W/ J! m - }
2 f6 ~% g/ T# p2 b) e( z - }
6 n T! A9 |; [ - void mainAction() {
9 X+ t" ]$ }7 H4 m3 Q - // 发送请求& V) y8 G+ d. {6 Z8 K3 W/ F9 A
- doGet("http://google.cn");
: `' K7 X, b6 {# X b4 n - }( q# z1 M0 i* q( Q
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