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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)
" m. B1 g% l' _* x% p- #include <ESP8266HTTPClient.h>
! w" o( O: ^2 g5 @ - #include <ESP8266WiFi.h>" |6 }2 J- W6 p* G$ I3 h$ g( r
- #include <ESP8266WiFiMulti.h>) I2 a5 n) D" H2 ~& c
- #include <ESP8266WebServer.h>; \7 ~9 W, @4 {8 M* i. V( Q1 H
- #include <arduino.h>
) a' c6 r& O) @5 t) w - ESP8266WiFiMulti WiFiMulti;
1 @" `, E2 j. D - ESP8266WebServer server(80);
3 T" R- g% Q7 } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# D* L0 S2 |; h4 k - ADC_MODE(ADC_VCC);
( C% O; p+ ?# e7 g. Q - void setup() {' e D, s5 z5 p7 M
- Serial.begin(115200);
1 _! L' g; x* A0 q- C, B# E( ~ - Serial.print("\r\n\n");
0 N( b, k0 ?$ A& `& k - pinMode(2,OUTPUT);0 |5 q- i1 Q9 w- }8 y
- // WIFI
* z2 T) Y4 ]8 v5 F - WiFi.mode(WIFI_STA);/ V8 w# R% A4 Y. L; w
- WiFi.hostname("Sparkle");
+ ]/ g0 A* `3 _- T+ M - WiFiMulti.addAP("wifi ssid", "wifi password");# }" O0 _( p6 Z2 R; K2 C- a
- int tryNum = 15;
3 T& G4 [# X' j8 Y4 A - Serial.print("Connect WiFi");/ l* s! N3 I- H2 P3 C% S
- while (WiFiMulti.run() != WL_CONNECTED) {
4 y! S$ m1 v6 g! q2 D! V - digitalWrite(2,0);
) L- B. b0 e; V ?; R) y+ A. ` - delay(200);# t! _# R3 x. e. j( f6 a
- digitalWrite(2,1);4 M7 a8 t5 \2 `+ ?- K% _3 ~
- delay(300);
% F: ]4 c1 G8 X. F5 b1 P: x - Serial.print(".");
/ M! p' `: M. ` - tryNum--;. T3 w/ i) `. v7 N) |
- if (tryNum == 0) {
$ Q' z8 t8 O6 b6 v6 A* c3 _ c - // 1min
% g3 ~7 W' Y* Z' `" g - // ESP.deepSleep(60e6);
! y3 l/ Q" }5 U% N7 g/ p1 | - ESP.deepSleep(0);
7 [9 M- K+ h7 ^! ~5 W8 P - }9 V9 B$ D; q& K) G
- }
2 R U$ p! t; b4 X - Serial.print("\r\n");* Z# M) Z5 L" p/ Q* s
- digitalWrite(2,1);$ d- W; A" p g5 i) Z& ~
- Serial.print("IP address : ");
; G- m' p8 e/ f8 W1 m4 t1 T0 X/ l - Serial.println(WiFi.localIP());7 e) e/ G( m7 g, K8 C
- server.on("/", HTTP_GET, [](){7 W: x y/ U: H. Z2 R
- server.sendHeader("Connection", "close");
$ T9 j" V/ p0 f - server.send(200, "text/html", serverIndex);
( R0 U! X. e1 `5 N- [. P, T - });& t4 _5 \, k& `8 J. E( v# k! I
- server.on("/update", HTTP_POST, [](){
. h# k0 }# s1 d6 o& e; x# { - server.sendHeader("Connection", "close");6 }- e& ^2 Q+ R% S
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 ]& }- x( [. W! s. M5 y% F9 g4 V - ESP.restart(); O: x4 ~" P: P) i4 s9 f$ m1 w/ E
- },[](){
) j+ i/ b$ t7 W ^9 f# V - HTTPUpload& upload = server.upload();
4 T) k9 z1 ]$ n8 {1 H8 c - if(upload.status == UPLOAD_FILE_START){) f' n6 a8 Q5 }2 C4 z
- Serial.setDebugOutput(true);' Y6 h" j) l2 t" n1 m, k
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 [/ f+ v' o4 W7 Q: @- x( x - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
) K4 W& }$ ^0 e6 |6 ?8 f - if(!Update.begin(maxSketchSpace)){
i/ O! ]7 w6 ?# I7 j0 H" P% e3 U) H - Update.printError(Serial);
$ d. g/ @) `1 p+ t$ S - }
* s, P) w( J: L6 v; n - } else if(upload.status == UPLOAD_FILE_WRITE){
8 K& S+ K* |8 X% A; V. j - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 ?! W) a8 b' I8 y
- Update.printError(Serial);0 ^/ f7 ?0 P3 f% u% b
- }2 y' M4 f5 ? R( v4 P
- } else if(upload.status == UPLOAD_FILE_END){
3 M) ~2 Z" P/ E% I - if(Update.end(true)){
' p+ V* \, d# k/ i$ [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. _! b: m3 ]# ? - } else {
' R$ ^" F. R* d% `0 o - Update.printError(Serial);
3 M' h8 w: N1 E1 _ - }
$ e% H0 f% R% T# @, D- J - Serial.setDebugOutput(false);
6 F& H i: e: f5 W. h: }; e- ? - }" k, [# ^5 @& ]7 _* ?. R' Y( Z
- yield();
9 @5 d; _7 p H% E1 i" p - });9 @9 S( ] \& b# x e ~
- * a5 h0 `, {- S
- digitalWrite(2,0);) d3 e/ p8 s* s% z* P& G2 z: r
- mainAction();' V/ B6 V& A& f7 Q
- if (digitalRead(0)){
0 P4 [. [/ K4 C: a - ESP.deepSleep(0);( o6 Z8 E- J/ N/ m/ L$ T0 F2 a8 T
- } else {
& D( G% g/ s) J* @2 { - server.begin();& l2 C I" C, @* q
- }: Q5 N O8 `3 H" B
- }' M* t5 _# s; F* `. J' W _& p
- void loop() {
# |& {* v( y$ c' R: D+ s) ~ - server.handleClient();
( `, }1 q) Q; r9 _ - delay(1);
9 q: U% _8 e/ d4 x: U - }
* n! t1 e" w7 s0 C u9 v# B5 M$ J - String doGet(String url){9 O# k2 L! r z; g+ j
- if ((WiFiMulti.run() == WL_CONNECTED)) {
. P, e1 U/ m, E% y - HTTPClient http;, z0 e/ D: N4 _$ Z, Z
- Serial.println("[HTTP] begin...");$ k o" ?/ a2 X3 \, y( i% X& B
- if (url.startsWith("https")) {
( h1 x M+ v6 a+ y) I+ S. a6 o - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 F6 j' Q& ?6 ?' a% [, z* g0 s
- } else {
3 V* B) ]" O. k! U. b b f" Y - http.begin(url);
6 r" L8 J& J% b" S9 D& F1 ~ - }
) _- C; ?9 |4 W0 J$ {) J/ Y. t6 ^ - Serial.println("[HTTP] GET...");
- w9 ?% K E5 a$ F/ r3 G4 y - int httpCode = http.GET();
6 r5 u' ~7 F* k+ Q - if (httpCode > 0) {8 g2 u: ~$ g) J
- Serial.printf("[HTTP] code: %d\n", httpCode);
' t, Y2 V4 d, M3 B4 Q - if (httpCode == HTTP_CODE_OK) {9 I" k. Y z. R9 l
- String payload = http.getString();. q+ Y% |3 j6 [1 r5 K0 \. C
- Serial.println(payload);6 v2 s3 u4 J7 g- f5 b0 a6 p, R
- Serial.print("\r\n");) y! m5 T( `3 t+ K$ B: Q) ^
- return payload;/ b5 g- h+ [! v1 z6 c* `
- }1 s! p( Q5 g" |: |
- } else {/ W7 D' A4 [" y5 ?7 z) D6 S
- Serial.printf("[HTTP] GET... failed, error: %s\n",; g' W/ s$ H+ [ h* z
- http.errorToString(httpCode).c_str());
0 J4 D3 h! A8 _$ _! @ V0 \3 y - }3 f* Y4 o6 b$ ^
- http.end();7 q7 @ l, m$ z% G7 q" o2 f
- return "";8 K8 H3 }2 M* L. F3 _
- }
, Z P6 F- U5 q# D - }% L- ]; z" y( `0 ?
- void mainAction() {
9 H4 D3 p* s+ M+ s T' W - // 发送请求
4 ?. l6 R& X( b) s - doGet("http://google.cn");* ]6 Y8 c& B K. q+ N- G( j6 S9 g" J
- }
# }8 g: Y( I% B1 P. P9 ?1 Q
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