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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)
+ F3 n* Q2 ?9 b7 A( k" }- #include <ESP8266HTTPClient.h>
+ X' R1 p+ x! ?9 f( \. o - #include <ESP8266WiFi.h>' k3 `8 o5 [6 p* `8 D1 O/ q7 W6 B
- #include <ESP8266WiFiMulti.h>/ D% J* p* i. n
- #include <ESP8266WebServer.h> E8 G- r. K1 d& @
- #include <arduino.h>
, b7 C, S: S' Z3 w& @4 T - ESP8266WiFiMulti WiFiMulti;; ^7 v+ `7 m3 {% d6 J$ T1 m
- ESP8266WebServer server(80);
' n' r/ f" w% b/ a* R% | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! s7 X7 ^) o$ v8 H9 [ [: `0 `
- ADC_MODE(ADC_VCC);
0 b+ J8 T, _# J5 J" B+ n" A( X - void setup() {1 C; w% x" O, v- g* |$ s
- Serial.begin(115200);
+ o w/ i+ T( I7 V) M8 I8 L - Serial.print("\r\n\n");
9 C8 E9 t5 \8 s4 f% m/ y6 N, P - pinMode(2,OUTPUT);# L# y1 p1 i0 Q a. T/ u
- // WIFI# P. I& K) @8 B
- WiFi.mode(WIFI_STA);
5 ]4 [5 l* Y' l5 A7 A - WiFi.hostname("Sparkle");
( R) f5 x9 y% S, N6 v5 g1 S6 c8 @ - WiFiMulti.addAP("wifi ssid", "wifi password");
2 `( L4 O' [) D. W - int tryNum = 15;: }2 X U0 ~$ D1 K( O1 V
- Serial.print("Connect WiFi");5 D# k$ d S2 Y7 M+ k$ o& l
- while (WiFiMulti.run() != WL_CONNECTED) {
: F& l# V. G3 H; d - digitalWrite(2,0);8 W) l5 u1 U2 }0 {% g( Q
- delay(200);" B7 ~6 t7 L* A- e) N" b) p* ^
- digitalWrite(2,1);% ~8 M9 w# k9 s! ?4 m7 V
- delay(300);
! R% l- J) A0 j7 z# U# J8 C - Serial.print(".");! g9 C, ]* Q9 W
- tryNum--;
2 D L$ n" f. l - if (tryNum == 0) {8 K; o$ H/ C" V5 i
- // 1min
! h) d' r' L8 N- v- h - // ESP.deepSleep(60e6);! S1 `; K& T$ x/ t4 x3 G
- ESP.deepSleep(0);
9 ^$ x1 I1 x0 Y, A: O - }
; Q1 u1 N. |' W4 { - }
5 Y, G! O5 ~9 E7 s- j2 Y7 K/ { - Serial.print("\r\n");% r4 R" f* f4 B
- digitalWrite(2,1);$ \8 s% H r) B- I1 X% u. k6 \5 J
- Serial.print("IP address : ");
, k" b, B! Y+ o - Serial.println(WiFi.localIP());- Y: c$ v% k$ v/ f" O; Q, p
- server.on("/", HTTP_GET, [](){* {" B% A2 Y7 c$ X6 p/ e! B8 x. B$ p
- server.sendHeader("Connection", "close");8 h; d( |, E8 g, d& z
- server.send(200, "text/html", serverIndex);% M, l- b1 |( i8 A n6 I
- });+ E7 W; @1 u O! T
- server.on("/update", HTTP_POST, [](){% S" f7 _( K0 j) o& F" t" T5 t
- server.sendHeader("Connection", "close");* M t t: y' ]7 D
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 E' N, u, D" |9 `4 Q
- ESP.restart();
+ ~$ q" F7 t% R& r3 P# L - },[](){+ O7 @# _9 ~* G. [. f8 u# x
- HTTPUpload& upload = server.upload();7 Y; {1 t# ]; c2 p5 J8 {6 H
- if(upload.status == UPLOAD_FILE_START){1 `4 u2 B* T- [' H- G
- Serial.setDebugOutput(true);
6 p0 @* i Q; B0 Y4 A$ J# K3 T - Serial.printf("Update: %s\n", upload.filename.c_str());; s: z- j- l4 b! P# _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" a7 T4 c( T0 C4 X8 c$ V - if(!Update.begin(maxSketchSpace)){: L& Z) O2 G8 u i/ R2 {$ S
- Update.printError(Serial);
% s- S& j: e$ \8 {) S/ Q. t+ I: P - }3 i/ U% [) |- a1 l
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 o! Z' y3 }4 L9 ]% f$ r: v - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ h& ]* }; l6 a% I" J( R) N
- Update.printError(Serial);
1 p# R& j5 o+ ~, C: e% E - }9 h7 E, i8 |) \- X
- } else if(upload.status == UPLOAD_FILE_END){9 c: F* W+ G1 k- T5 H
- if(Update.end(true)){" D' C" A# w9 V4 Z, h
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; B* Q+ b W" m* ^, ?" e: l" y/ ~
- } else {$ R' R# P8 I: B0 m* G7 o
- Update.printError(Serial);
5 V% ]! P7 T3 K. }. z - }
3 z& q* g: R- `% v7 [' Z - Serial.setDebugOutput(false);. ]2 f9 {* r8 t
- }7 p/ K6 u& F6 W3 F' F6 A" u2 g
- yield();
. d) A2 H( R1 \& Z# s) i- h0 L - });/ P: e$ i3 }, Q$ ~
- / p) n* Q: l. j) L, i
- digitalWrite(2,0);$ m2 d0 W/ T$ n3 J
- mainAction();$ g$ l4 K2 l W% Y" f5 {( M
- if (digitalRead(0)){
( |0 e" R! \ d - ESP.deepSleep(0);
, N' }. p& r+ ^1 L o - } else { R, m0 P3 j" h$ _ N1 Y8 l
- server.begin();- G7 R0 b6 Q. A- F8 Y
- }3 M( w% |* l* W8 V3 P2 h
- }
" }" D4 P! k& B1 p) } - void loop() {
) ^. g! _. U3 j) \. w/ K& | - server.handleClient();: ^: D# j5 d' @8 Q- n [' J
- delay(1);
! c( ~4 ~% p5 y; a, J" u$ c - }
' C0 V. R. P8 k - String doGet(String url){
- C; h! N7 g" ?5 P; Y# I - if ((WiFiMulti.run() == WL_CONNECTED)) {
" m, G% e2 o! ]% M. V - HTTPClient http;
$ }$ R B2 c& N- c+ ^9 O% ` - Serial.println("[HTTP] begin...");0 A- G, ~6 K" f2 r
- if (url.startsWith("https")) {/ m/ E" o7 w7 X0 q. `8 p
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" _0 [& [: Y$ _) h2 G3 l: M
- } else {
+ u& }* w$ a: a) i7 ]6 l; q* S1 S - http.begin(url);
! a1 o( j2 g5 Z% t& T - }" j9 F1 {" [& L L+ W/ B0 M
- Serial.println("[HTTP] GET...");, X9 H6 ]# y) \: G
- int httpCode = http.GET();
6 v3 s4 G$ R- G# Z4 V' l5 ~# m s9 p - if (httpCode > 0) {
& k2 U1 }: y2 q" x# \) W- r6 l - Serial.printf("[HTTP] code: %d\n", httpCode);2 `* k+ t7 V: m+ g5 @; h% T: M
- if (httpCode == HTTP_CODE_OK) {/ j3 E- U& _. T* X* J
- String payload = http.getString();
" h4 Z. ^" [. ~) U( o% R( M - Serial.println(payload);( u4 h Q1 P8 Y' i) r' E# ^
- Serial.print("\r\n");
+ ^4 {2 W( ?( P" E Z - return payload;5 d; C, v* I- K' n2 e- w$ t
- }( U0 G* D- M, v/ H7 a
- } else {4 L, C6 t4 [9 Y2 @6 i. P+ X
- Serial.printf("[HTTP] GET... failed, error: %s\n",/ A) A- }9 \+ D: _$ q
- http.errorToString(httpCode).c_str());
9 Q5 u" \- m6 u( i% ] - }* I) P) @1 p6 g6 V% Q9 l
- http.end();6 f. ~8 _) t9 P* A/ x1 {
- return "";
4 ]( w* U: n/ q" a* l - }
: a: e9 |0 Q' f" b- j - }
/ [- j% a0 {7 B! y8 ~9 f - void mainAction() {
9 e5 P0 G. S2 U' w( Y$ v - // 发送请求* W7 m4 j# P& M9 m4 J3 Y% _- c) L
- doGet("http://google.cn");
. a, j. _ U. C% B! O - }
+ F9 n# W! L& j! Q u8 E, T! H+ U
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